remove post_hook

Reviewed-on: #45
Reviewed-by: Ulf Wiger <ulfwiger@qpq.swiss>

.circleci/config.yml

@@ -3,7 +3,7 @@ version: 2.1
 executors:
   aebuilder:
     docker:
-      - image: aeternity/builder
+      - image: aeternity/builder:bionic-otp23
         user: builder
     working_directory: ~/src
 

.gitignore

@@ -1,4 +1,4 @@
 _build
 c_src
 priv
-ebin
+ebin/*.beam

Emakefile

@@ -0,0 +1 @@
+{"src/*",  [debug_info, {i, "include/"}, {outdir, "ebin/"}]}.

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

Makefile

@@ -12,10 +12,10 @@ dialyzer:
 	$(REBAR) dialyzer
 
 ct: all
-	$(REBAR) ct --suite=test/aecuckoo_SUITE
+	$(REBAR) ct --suite=test/gmcuckoo_SUITE
 
 eunit:
-	$(REBAR) eunit --module=aeminer_pow_tests,aeminer_pow_cuckoo_tests
+	$(REBAR) eunit --module=gmminer_pow_tests,gmminer_pow_cuckoo_tests
 
 clean:
 	$(REBAR) clean

README.md

@@ -1,4 +1,4 @@
-# aeminer
+# gmminer
 
 Erlang library to work with CPU and CUDA cuckoo miners.
 

ebin/gmminer.app

@@ -0,0 +1,11 @@
+{application,gmminer,
+             [{description,"Gajumaru Cuckoo Cycle mining support"},
+              {vsn,"1.0.1"},
+              {registered,[]},
+              {applications,[kernel,stdlib,gmcuckoo]},
+              {env,[]},
+              {modules,[gmminer_blake2b_256,gmminer_pow,gmminer_pow_cuckoo,
+                        gmminer_siphash24]},
+              {maintainers,[]},
+              {licenses,[]},
+              {links,[]}]}.

rebar.config

@@ -1,5 +1,4 @@
 {deps, [
-        {hut, "1.3.0"},
 
         %% Cuckoo prebuilt CUDA binaries.
         {aecuckooprebuilt,
@@ -8,11 +7,7 @@
 
         %% Cuckoo CPU miners (not prebuilt).
         {aecuckoo, {git, "https://github.com/aeternity/aecuckoo.git",
-                    {ref, "a1bff574dd0a965d3f9f2e23f980bbead8b4638d"}}},
+                    {ref, "996ffcd"}}}
-
-        %% This is used just in one place, just to get blake2b_256 hash.
-        {enacl, {git, "https://github.com/aeternity/enacl.git",
-                {ref, "26180f4"}}}
        ]}.
 
 {plugins, [{rebar_aecuckooprebuilt_dep, {git, "https://github.com/aeternity/rebar3-cuckoo-prebuilt-plugin.git",

rebar.config.script

@@ -1,16 +0,0 @@
-%% -*- mode:erlang; erlang-indent-level:4; indent-tabs-mode:nil -*-
-case os:getenv("AE_DISABLE_CUCKOO") =/= false of
-    true ->
-        RemoveApps = [aecuckoo, aecuckooprebuilt],
-        RemovePlugins = [rebar_aecuckooprebuilt_dep],
-        {_, Deps} = lists:keyfind(deps, 1, CONFIG),
-        NewDeps = [D || D <- Deps,
-                        not lists:member(element(1,D), RemoveApps)],
-        Plugins = proplists:get_value(plugins, CONFIG, []),
-        CONFIG1 = lists:keyreplace(deps, 1, CONFIG, {deps, NewDeps}),
-        Plugins1 = [P || P <- Plugins,
-                         not lists:member(element(1,P), RemovePlugins)],
-        lists:keystore(plugins, 1, CONFIG1, {plugins, Plugins1});
-    false ->
-        CONFIG
-end.

rebar.lock

@@ -1,7 +1,7 @@
-{"1.1.0",
+{"1.2.0",
 [{<<"aecuckoo">>,
   {git,"https://github.com/aeternity/aecuckoo.git",
-      {ref,"a1bff574dd0a965d3f9f2e23f980bbead8b4638d"}},
+      {ref,"996ffcdb336f1c2254ea8e1b1a657b05b7ea4a81"}},
   0},
  {<<"aecuckooprebuilt">>,
   {aecuckooprebuilt_app_with_priv_from_git,
@@ -9,11 +9,13 @@
           {ref,"90afb699dc9cc41d033a7c8551179d32b3bd569d"}}},
   0},
  {<<"enacl">>,
-  {git,"https://github.com/aeternity/enacl.git",
+  {git,"https://git.qpq.swiss/QPQ-AG/enacl.git",
-      {ref,"26180f42c0b3a450905d2efd8bc7fd5fd9cece75"}},
+      {ref,"4eb7ec70084ba7c87b1af8797c4c4e90c84f95a2"}},
   0},
  {<<"hut">>,{pkg,<<"hut">>,<<"1.3.0">>},0}]}.
 [
 {pkg_hash,[
- {<<"hut">>, <<"71F2F054E657C03F959CF1ACC43F436EA87580696528CA2A55C8AFB1B06C85E7">>}]}
+ {<<"hut">>, <<"71F2F054E657C03F959CF1ACC43F436EA87580696528CA2A55C8AFB1B06C85E7">>}]},
+{pkg_hash_ext,[
+ {<<"hut">>, <<"7E15D28555D8A1F2B5A3A931EC120AF0753E4853A4C66053DB354F35BF9AB563">>}]}
 ].

rebar.lock.script

@@ -1,29 +0,0 @@
-%% -*- erlang -*-
-
-FilterCheck = (os:getenv("AE_DISABLE_CUCKOO") =/= false),
-RemoveApps = [<<"aecuckoo">>, <<"aecuckooprebuilt">>],
-
-Filter = fun(Apps) ->
-                 case FilterCheck of
-                     false ->
-                         Apps;
-                     true ->
-                         lists:foldl(
-                           fun(App, Acc) ->
-                                   lists:keydelete(App, 1, Acc)
-                           end,
-                           Apps,
-                           RemoveApps
-                          )
-                 end
-         end,
-
-case CONFIG of
-    [] ->
-        %% no lock file present, usually during unlock/upgrade
-        CONFIG;
-    [{Version, Deps}, [{pkg_hash, Pkgs}]] ->
-        Deps1 = Filter(Deps),
-        Pkgs1 = Filter(Pkgs),
-        [{Version, Deps1}, [{pkg_hash, Pkgs1}]]
-end.

src/aeminer.app.src.script

@@ -1,18 +0,0 @@
-%% -*- mode:erlang; erlang-indent-level:4; indent-tabs-mode:nil -*-
-
-RemoveApps = [aecuckoo, aecuckooprebuilt].
-Base = filename:basename(SCRIPT, ".script").
-Dir = filename:dirname(SCRIPT).
-{ok, [{application,_,Opts} = App]} = file:consult(filename:join(Dir, Base)).
-case os:getenv("AE_DISABLE_CUCKOO") =/= false of
-    true ->
-        {_, Apps} = lists:keyfind(applications, 1, Opts),
-        Env = proplists:get_value(env, Opts, []),
-        Env1 = lists:keystore(use_cuckoo, 1, Env, {use_cuckoo, false}),
-        Apps1 = Apps -- RemoveApps,
-        Opts1 = lists:keyreplace(applications, 1, Opts, {applications, Apps1}),
-        Opts2 = lists:keystore(env, 1, Opts1, {env, Env1}),
-        setelement(3, App, Opts2);
-    false ->
-        App
-end.

src/gmminer.app.src

@@ -1,14 +1,11 @@
-{application, aeminer,
+{application, gmminer,
- [{description, "Aeternity miner"},
+ [{description, "Gajumaru miner"},
   {vsn, "1.0.0"},
   {registered, []},
   {applications,
    [kernel,
     stdlib,
-    enacl,
+    gmcuckoo
-    hut,
-    aecuckoo,
-    aecuckooprebuilt
    ]},
   {env,[]},
   {modules, []},

src/gmminer_blake2b_256.erl

@@ -1,4 +1,4 @@
--module(aeminer_blake2b_256).
+-module(gmminer_blake2b_256).
 
 -export([hash/1]).
 
@@ -14,6 +14,5 @@
 
 -spec hash(hashable()) -> hash().
 hash(Bin) ->
-    {ok, Hash} = enacl:generichash(?HASH_BYTES_SIZE, Bin),
+    eblake2:blake2b(?HASH_BYTES_SIZE, Bin).
-    Hash.
 

src/gmminer_pow.erl

@@ -4,7 +4,7 @@
 %%%    Common functions and behaviour for Proof of Work
 %%% @end
 %%%=============================================================================
--module(aeminer_pow).
+-module(gmminer_pow).
 
 -export([integer_to_scientific/1,
          next_nonce/2,
@@ -22,7 +22,7 @@
               instance/0
              ]).
 
--include("aeminer.hrl").
+-include("gmminer.hrl").
 
 -type nonce()      :: ?MIN_NONCE..?MAX_NONCE.
 
@@ -38,7 +38,7 @@
 
 -type instance()   :: non_neg_integer().
 
--type config()     :: aeminer_pow_cuckoo:config().
+-type config()     :: gmminer_pow_cuckoo:config().
 
 %%------------------------------------------------------------------------------
 %%                      Target threshold and difficulty
@@ -114,7 +114,7 @@ target_to_difficulty(SciTgt) ->
 
 -spec next_nonce(nonce(), config()) -> nonce().
 next_nonce(Nonce, Cfg) ->
-    Nonce + aeminer_pow_cuckoo:repeats(Cfg).
+    Nonce + gmminer_pow_cuckoo:repeats(Cfg).
 
 -spec pick_nonce() -> nonce().
 pick_nonce() ->
@@ -122,7 +122,7 @@ pick_nonce() ->
 
 -spec trim_nonce(nonce(), config()) -> nonce().
 trim_nonce(Nonce, Cfg) ->
-    case Nonce + aeminer_pow_cuckoo:repeats(Cfg) < ?MAX_NONCE of
+    case Nonce + gmminer_pow_cuckoo:repeats(Cfg) < ?MAX_NONCE of
         true  -> Nonce;
         false -> 0
     end.

src/gmminer_pow_cuckoo.erl

@@ -1,4 +1,5 @@
 %%%-------------------------------------------------------------------
+%%% @copyright (C) 2025, QPQ AG
 %%% @copyright (C) 2019, Aeternity Anstalt
 %%% @doc
 %%%    A library providing Cuckoo Cycle PoW generation and verification.
@@ -13,7 +14,7 @@
 %%%
 %%% @end
 %%%-------------------------------------------------------------------
--module(aeminer_pow_cuckoo).
+-module(gmminer_pow_cuckoo).
 
 -export([config/7,
          addressed_instances/1,
@@ -26,13 +27,18 @@
 
 -export([hash_data/1,
          generate/5,
+         generate_all/5,
          generate_from_hash/5,
+         generate_from_hash/6,
          verify/5,
          verify_proof/4,
          verify_proof_from_hash/4,
-         get_target/2
+         get_target/2,
+         test_target/3
         ]).
 
+-export([ set_edge_bits/2 ]).
+
 -export_type([hashable/0,
               hash/0,
               exec/0,
@@ -53,20 +59,20 @@
         ]).
 -endif.
 
--include_lib("hut/include/hut.hrl").
+-include_lib("kernel/include/logger.hrl").
--include("aeminer.hrl").
+-include("gmminer.hrl").
 
--type hashable()          :: aeminer_blake2b_256:hashable().
+-type hashable()          :: gmminer_blake2b_256:hashable().
 
--type hash()              :: aeminer_blake2b_256:hash().
+-type hash()              :: gmminer_blake2b_256:hash().
 
--type nonce()             :: aeminer_pow:nonce().
+-type nonce()             :: gmminer_pow:nonce().
 
--type int_target()        :: aeminer_pow:int_target().
+-type int_target()        :: gmminer_pow:int_target().
 
--type sci_target()        :: aeminer_pow:sci_target().
+-type sci_target()        :: gmminer_pow:sci_target().
 
--type instance()          :: aeminer_pow:instance()
+-type instance()          :: gmminer_pow:instance()
                            | undefined.
 
 -type exec()              :: binary().
@@ -81,10 +87,11 @@
 
 -type edge_bits()         :: pos_integer().
 
--type instances()         :: [aeminer_pow:instance()]
+-type instances()         :: [gmminer_pow:instance()]
                            | undefined.
 
 -type solution()          :: [integer()].
+-type solutions()         :: [{nonce(), solution()}].
 
 -type output_parser_fun() :: fun(([string()], state()) ->
                                     {ok, term(), term()} | {error, term()}).
@@ -102,12 +109,14 @@
 -opaque config()          :: #config{}.
 
 -record(state, {
-          os_pid          :: integer() | undefined,
+          os_pid             :: integer() | undefined,
-          port            :: port() | undefined,
+          port               :: port() | undefined,
-          buffer = []     :: string(),
+          buffer = []        :: string(),
-          target          :: sci_target() | undefined,
+          solutions = []     :: solutions(),
-          edge_bits       :: edge_bits(),
+          keep_going = false :: boolean(),
-          parser          :: output_parser_fun()
+          target             :: sci_target() | undefined,
+          edge_bits          :: edge_bits(),
+          parser             :: output_parser_fun()
          }).
 
 -type state()             :: #state{}.
@@ -156,7 +165,12 @@ hex_enc_header(#config{hex_enc_header = HexEncHdr}) ->
 
 -spec hash_data(hashable()) -> hash().
 hash_data(Data) ->
-    aeminer_blake2b_256:hash(Data).
+    gmminer_blake2b_256:hash(Data).
+
+-spec set_edge_bits(edge_bits(), config()) -> config().
+set_edge_bits(Bits, Config)
+  when is_integer(Bits), Bits > 0, is_record(Config, config) ->
+    Config#config{edge_bits = Bits}.
 
 %%------------------------------------------------------------------------------
 %% Proof of Work generation with default settings
@@ -179,20 +193,35 @@ hash_data(Data) ->
     {ok, {nonce(), solution()}} | {error, no_solution} | {error, {runtime, term()}}.
 generate(Data, Target, Nonce, Config, Instance) when
       Nonce >= 0, Nonce =< ?MAX_NONCE ->
-    Hash = aeminer_blake2b_256:hash(Data),
+    Hash = gmminer_blake2b_256:hash(Data),
     generate_from_hash(Hash, Target, Nonce, Config, Instance).
 
+-spec generate_all(hashable(), sci_target(), nonce(), config(), instance()) ->
+          {ok, solutions()} | {error, no_solution} | {error, {runtime, term()}}.
+generate_all(Data, Target, Nonce, Config, Instance) when
+      Nonce >= 0, Nonce =< ?MAX_NONCE ->
+    Hash = gmminer_blake2b_256:hash(Data),
+    generate_from_hash(Hash, Target, Nonce, Config, Instance, true).
+
 -spec generate_from_hash(hash(), sci_target(), nonce(), config(), instance()) ->
     {ok, {nonce(), solution()}} | {error, no_solution} | {error, {runtime, term()}}.
 generate_from_hash(Hash, Target, Nonce, Config, Instance) ->
+    generate_from_hash(Hash, Target, Nonce, Config, Instance, false).
+
+
+-spec generate_from_hash(hash(), sci_target(), nonce(), config(), instance(), boolean()) ->
+    {ok, {nonce(), solution()}} | {ok, solutions()} | {error, no_solution} | {error, {runtime, term()}}.
+generate_from_hash(Hash, Target, Nonce, Config, Instance, KeepGoing) ->
     Hash64 = base64:encode_to_string(Hash),
-    ?log(debug, "Generating solution for data hash ~p and nonce ~p with target ~p.",
+    ?LOG_DEBUG("Generating solution for data hash ~p and nonce ~p with target ~p.",
            [Hash, Nonce, Target]),
-    case generate_int(Hash64, Nonce, Target, Config, Instance) of
+    case generate_int(Hash64, Nonce, Target, Config, Instance, KeepGoing) of
         {ok, Nonce1, Soln} ->
             {ok, {Nonce1, Soln}};
+        {ok, _} = Ok ->
+            Ok;
         {error, no_value} ->
-            ?log(debug, "No cuckoo solution found", []),
+            ?LOG_DEBUG("No cuckoo solution found", []),
             {error, no_solution};
         {error, Rsn} ->
             %% Exec failed (segfault, not found, etc.): let miner decide
@@ -222,7 +251,7 @@ verify(Data, Nonce, Soln, Target, EdgeBits) when
 verify_proof(Data, Nonce, Solution, EdgeBits) ->
     %% Cuckoo has an 80 byte header, we have to use that as well
     %% packed Hash + Nonce = 56 bytes, add 24 bytes of 0:s
-    Hash = aeminer_blake2b_256:hash(Data),
+    Hash = gmminer_blake2b_256:hash(Data),
     verify_proof_from_hash(Hash, Nonce, Solution, EdgeBits).
 
 -spec verify_proof_from_hash(hash(), nonce(), solution(), edge_bits()) -> boolean().
@@ -235,7 +264,7 @@ verify_proof_from_hash(Hash, Nonce, Solution, EdgeBits) ->
 get_target(Soln, EdgeBits) when is_list(Soln), length(Soln) =:= ?SOLUTION_SIZE ->
     NodeSize = get_node_size(EdgeBits),
     Bin = solution_to_binary(lists:sort(Soln), NodeSize * 8, <<>>),
-    Hash = aeminer_blake2b_256:hash(Bin),
+    Hash = gmminer_blake2b_256:hash(Bin),
     <<Val:32/big-unsigned-integer-unit:8>> = Hash,
     Val.
 
@@ -243,7 +272,7 @@ get_target(Soln, EdgeBits) when is_list(Soln), length(Soln) =:= ?SOLUTION_SIZE -
 
 generate_int(Hash, Nonce, Target,
              #config{exec = Exec0, extra_args = ExtraArgs0,
-                     hex_enc_header = HexEncHdr} = Config, Instance) ->
+                     hex_enc_header = HexEncHdr} = Config, Instance, KeepGoing) ->
     ExtraArgs =
         case is_miner_instance_addressation_enabled(Config) of
             true  -> binary_to_list(ExtraArgs0) ++ " -d " ++ integer_to_list(Instance);
@@ -256,13 +285,13 @@ generate_int(Hash, Nonce, Target,
         end,
     ExecBinDir  = exec_bin_dir(Config),
     Exec = binary_to_list(Exec0),
-    generate_int(EncodedHash, Nonce, Target, ExecBinDir, Exec, ExtraArgs, Config).
+    generate_int(EncodedHash, Nonce, Target, ExecBinDir, Exec, ExtraArgs, Config, KeepGoing).
 
 generate_int(Hash, Nonce, Target, MinerBinDir, MinerBin, MinerExtraArgs,
-             #config{repeats = Repeats0, edge_bits = EdgeBits}) ->
+             #config{repeats = Repeats0, edge_bits = EdgeBits}, KeepGoing) ->
     Repeats = integer_to_list(Repeats0),
     Args = ["-h", Hash, "-n", integer_to_list(Nonce), "-r", Repeats | string:tokens(MinerExtraArgs, " ")],
-    ?log(info, "Executing cmd '~s ~s'", [MinerBin, lists:concat(lists:join(" ", Args))]),
+    ?LOG_INFO("Executing cmd '~s ~s'", [MinerBin, lists:concat(lists:join(" ", Args))]),
     Old = process_flag(trap_exit, true),
     try exec_run(MinerBin, MinerBinDir, Args) of
         {ok, Port, OsPid} ->
@@ -270,6 +299,7 @@ generate_int(Hash, Nonce, Target, MinerBinDir, MinerBin, MinerExtraArgs,
                                    port = Port,
                                    buffer = [],
                                    target = Target,
+                                   keep_going = KeepGoing,
                                    edge_bits = EdgeBits,
                                    parser = fun parse_generation_result/2});
         {error, _Rsn} = Err ->
@@ -297,8 +327,26 @@ is_miner_instance_addressation_enabled(#config{instances = Instances}) ->
 
 exec_bin_dir(#config{exec_group = ExecGroup}) ->
     case ExecGroup of
-        <<"aecuckoo">>         -> aecuckoo:bin_dir();
+        <<"aecuckoo">>         -> gmcuckoo:bin_dir();
-        <<"aecuckooprebuilt">> -> code:priv_dir(aecuckooprebuilt)
+        <<"gmcuckoo">>         -> gmcuckoo:bin_dir();
+        <<"aecuckooprebuilt">> -> filename:join(priv_dir(gmcuckoo), "cuda");
+        <<"cuda">>             -> filename:join(priv_dir(gmcuckoo), "cuda")
+    end.
+
+priv_dir(App) ->
+    case is_pid(whereis(zx_daemon)) of
+        false ->
+            code:priv_dir(App);
+        true ->
+            %% Running in Zomp context - priv_dir/1 won't work
+            #{deps := Deps} = zx_daemon:meta(),
+            case lists:keyfind(atom_to_list(App), 2, Deps) of
+                false ->
+                    code:priv_dir(App);
+                PId ->
+                    Lib = zx_lib:ppath(lib, PId),
+                    filename:join(Lib, "priv")
+            end
     end.
 
 -define(POW_TOO_BIG(Nonce), {error, {nonce_too_big, Nonce}}).
@@ -309,7 +357,7 @@ exec_bin_dir(#config{exec_group = ExecGroup}) ->
 -define(POW_SHORT_CYCLE, {error, cycle_too_short}).
 
 verify_proof_(Header, Solution, EdgeBits) ->
-    {K0, K1, K2, K3} = aeminer_siphash24:create_keys(Header),
+    {K0, K1, K2, K3} = gmminer_siphash24:create_keys(Header),
 
     EdgeMask = (1 bsl EdgeBits) - 1,
     try
@@ -340,12 +388,12 @@ verify_proof_(Header, Solution, EdgeBits) ->
         end
     catch
         throw:{error, Rsn} ->
-            ?log(info, "Proof verification failed for ~p: ~p", [Solution, Rsn]),
+            ?LOG_INFO("Proof verification failed for ~p: ~p", [Solution, Rsn]),
             false
     end.
 
 sipnode(K0, K1, K2, K3, Proof, UOrV, EdgeMask) ->
-    SipHash = aeminer_siphash24:hash(K0, K1, K2, K3, 2*Proof + UOrV) band EdgeMask,
+    SipHash = gmminer_siphash24:hash(K0, K1, K2, K3, 2*Proof + UOrV) band EdgeMask,
     (SipHash bsl 1) bor UOrV.
 
 check_cycle(Nodes0) ->
@@ -398,7 +446,7 @@ find_node(X, [N1, N2 | Nodes], Acc) ->
 %%   Since this hash is purely internal, we don't use api encoding.
 %% @end
 %%------------------------------------------------------------------------------
--spec pack_header_and_nonce(binary(), aeminer_pow:nonce()) -> string().
+-spec pack_header_and_nonce(binary(), gmminer_pow:nonce()) -> string().
 pack_header_and_nonce(Hash, Nonce) when byte_size(Hash) == 32 ->
     %% Cuckoo originally uses 32-bit nonces inserted at the end of its 80-byte buffer.
     %% This buffer is hashed into the keys used by the main algorithm.
@@ -445,7 +493,21 @@ wait_for_result(#state{os_pid = OsPid, port = Port, buffer = Buffer} = State) ->
             exit(shutdown);
         {'EXIT', Port, normal} ->
             %% Process ended but no value found
-            {error, no_value};
+            case State#state.solutions of
+                [] ->
+                    {error, no_value};
+
+                [_|_] = Sols0 ->
+                    Sols = lists:reverse(Sols0),
+                    case State#state.keep_going of
+                        false ->
+                            %% For compatibility, pick the one first found
+                            [{N, S}|_] = Sols,
+                            {ok, N, S};
+                        true ->
+                            {ok, Sols}
+                    end
+            end;
         _Other ->
             wait_for_result(State)
     end.
@@ -487,28 +549,41 @@ handle_fragmented_lines(Str, Buffer) ->
 parse_generation_result([], State) ->
     wait_for_result(State);
 parse_generation_result(["Solution" ++ NonceValuesStr | Rest],
-                        #state{os_pid = OsPid, edge_bits = EdgeBits, target = Target} = State) ->
+                        #state{os_pid = OsPid, edge_bits = EdgeBits,
+                               target = Target, keep_going = KeepGoing} = State) ->
     [NonceStr | SolStrs] =  string:tokens(NonceValuesStr, " "),
     Soln = [list_to_integer(string:trim(V, both, [$\r]), 16) || V <- SolStrs],
     case {length(Soln), test_target(Soln, Target, EdgeBits)} of
         {?SOLUTION_SIZE, true} ->
-            stop_execution(OsPid),
+            ?LOG_DEBUG("Solution found, KeepGoing = ~p", [KeepGoing]),
+            case KeepGoing of
+                true -> ok;
+                false ->
+                    stop_execution(OsPid)
+            end,
             case parse_nonce_str(NonceStr) of
                 {ok, Nonce} ->
-                    ?log(debug, "Solution found: ~p", [Soln]),
+                    ?LOG_DEBUG("Solution found: ~p", [Soln]),
-                    {ok, Nonce, Soln};
+                    case KeepGoing of
+                        true ->
+                            Sols = State#state.solutions,
+                            State1 = State#state{solutions = [{Nonce, Soln}|Sols]},
+                            parse_generation_result(Rest, State1);
+                        false ->
+                            {ok, Nonce, Soln}
+                    end;
                 Err = {error, _} ->
-                    ?log(debug, "Bad nonce: ~p", [Err]),
+                    ?LOG_DEBUG("Bad nonce: ~p", [Err]),
                     Err
             end;
         {N, _} when N /= ?SOLUTION_SIZE ->
-            ?log(debug, "Solution has wrong length (~p) should be ~p", [N, ?SOLUTION_SIZE]),
+            ?LOG_DEBUG("Solution has wrong length (~p) should be ~p", [N, ?SOLUTION_SIZE]),
             %% No nonce in solution, old miner exec?
             stop_execution(OsPid),
             {error, bad_miner};
         {_, false} ->
             %% failed to meet target: go on, we may find another solution
-            ?log(debug, "Failed to meet target (~p)", [Target]),
+            ?LOG_DEBUG("Failed to meet target (~p)", [Target]),
             parse_generation_result(Rest, State)
     end;
 parse_generation_result([_Msg | T], State) ->
@@ -526,7 +601,7 @@ parse_nonce_str(S) ->
 %%------------------------------------------------------------------------------
 stop_execution(OsPid) ->
     exec_kill(OsPid),
-    ?log(debug, "Mining OS process ~p stopped", [OsPid]),
+    ?LOG_DEBUG("Mining OS process ~p stopped", [OsPid]),
     ok.
 
 %%------------------------------------------------------------------------------
@@ -558,10 +633,10 @@ exec_run(Cmd, Dir, Args) ->
         Port = erlang:open_port(PortName, PortSettings),
         case erlang:port_info(Port, os_pid) of
             {os_pid, OsPid} ->
-                ?log(debug, "External mining process started with OS pid ~p", [OsPid]),
+                ?LOG_DEBUG("External mining process started with OS pid ~p", [OsPid]),
                 {ok, Port, OsPid};
             undefined ->
-                ?log(warning, "External mining process finished before ~p could acquire the OS pid", [?MODULE]),
+                ?LOG_WARNING("External mining process finished before ~p could acquire the OS pid", [?MODULE]),
                 {ok, Port, undefined}
         end
     catch
@@ -599,8 +674,8 @@ test_target(Soln, Target, EdgeBits) ->
 
 test_target1(Soln, Target, NodeSize) ->
     Bin = solution_to_binary(lists:sort(Soln), NodeSize * 8),
-    Hash = aeminer_blake2b_256:hash(Bin),
+    Hash = gmminer_blake2b_256:hash(Bin),
-    aeminer_pow:test_target(Hash, Target).
+    gmminer_pow:test_target(Hash, Target).
 
 %%------------------------------------------------------------------------------
 %% Convert solution (a list of 42 numbers) to a binary

src/gmminer_siphash24.erl

@@ -5,7 +5,7 @@
 %%% @end
 %%%=============================================================================
 
--module(aeminer_siphash24).
+-module(gmminer_siphash24).
 
 -export([create_keys/1,
          hash/5]).
@@ -28,12 +28,12 @@
 %%%=============================================================================
 
 -spec create_keys(binary()) ->
-          {aeminer_siphash24:siphash_key(),
+          {gmminer_siphash24:siphash_key(),
-           aeminer_siphash24:siphash_key(),
+           gmminer_siphash24:siphash_key(),
-           aeminer_siphash24:siphash_key(),
+           gmminer_siphash24:siphash_key(),
-           aeminer_siphash24:siphash_key()}.
+           gmminer_siphash24:siphash_key()}.
 create_keys(Header) ->
-    AuxHash = <<_:32/binary>> = aeminer_blake2b_256:hash(Header),
+    AuxHash = <<_:32/binary>> = gmminer_blake2b_256:hash(Header),
     <<K0:64/little-unsigned,
       K1:64/little-unsigned,
       K2:64/little-unsigned,

test/gmcuckoo_SUITE.erl

@@ -1,9 +1,10 @@
 %%%-------------------------------------------------------------------
+%%% @copyright (C) 2025, QPQ AG
 %%% @copyright (C) 2019, Aeternity Anstalt
 %%% @doc Basic sanity checks and examples on Cuckoo cycle PoW executables.
 %%% @end
 %%%-------------------------------------------------------------------
--module(aecuckoo_SUITE).
+-module(gmcuckoo_SUITE).
 
 %% common_test exports
 -export(
@@ -56,7 +57,7 @@ smoke_test(Config) ->
     HeaderEquivalent = <<0:(44*8), (base64:encode(<<Nonce:64/little-unsigned-integer>>))/binary, 0:(24*8)>>,
 
     42 = length(Solution),
-    true = aeminer_pow_cuckoo:verify_proof_(HeaderEquivalent, Solution, 15),
+    true = gmminer_pow_cuckoo:verify_proof_(HeaderEquivalent, Solution, 15),
 
     ok.
 

test/gmminer_pow_cuckoo_tests.erl

@@ -1,17 +1,18 @@
 %%%=============================================================================
+%%% @copyright (C) 2025, QPQ AG
 %%% @copyright (C) 2019, Aeternity Anstalt
 %%% @doc
-%%%   Unit tests for the aeminer_pow_cuckoo module
+%%%   Unit tests for the gmminer_pow_cuckoo module
 %%% @end
 %%%=============================================================================
--module(aeminer_pow_cuckoo_tests).
+-module(gmminer_pow_cuckoo_tests).
 
 -include_lib("eunit/include/eunit.hrl").
 
--include("aeminer.hrl").
+-include("gmminer.hrl").
 
--define(TEST_MODULE, aeminer_pow_cuckoo).
+-define(TEST_MODULE, gmminer_pow_cuckoo).
--define(POW_MODULE, aeminer_pow).
+-define(POW_MODULE, gmminer_pow).
 
 -define(TEST_BIN, <<"wsffgujnjkqhduihsahswgdf">>).
 -define(TEST_HIGH_NONCE, 38). %% Nonce with solution with high target.

test/gmminer_pow_tests.erl

@@ -1,16 +1,17 @@
 %%%=============================================================================
+%%% @copyright (C) 2025, QPQ AG
 %%% @copyright (C) 2019, Aeternity Anstalt
 %%% @doc
-%%%   Unit tests for the aeminer_pow module
+%%%   Unit tests for the gmminer_pow module
 %%% @end
 %%%=============================================================================
--module(aeminer_pow_tests).
+-module(gmminer_pow_tests).
 
 -include_lib("eunit/include/eunit.hrl").
 
--define(TEST_MODULE, aeminer_pow).
+-define(TEST_MODULE, gmminer_pow).
 
--include("aeminer.hrl").
+-include("gmminer.hrl").
 
 conversion_test_() ->
     {setup,
@@ -47,7 +48,7 @@ conversion_test_() ->
                               ?assertEqual(255, ?TEST_MODULE:scientific_to_integer(16#0200ff00)),
                               ?assertEqual(16#800000, ?TEST_MODULE:scientific_to_integer(16#04008000)),
                               ?assertEqual(?HIGHEST_TARGET_INT,
-                                           aeminer_pow:scientific_to_integer(?HIGHEST_TARGET_SCI))
+                                           gmminer_pow:scientific_to_integer(?HIGHEST_TARGET_SCI))
        end},
       {"Integer to scientific and back",
        fun() ->

zomp.meta

@@ -0,0 +1,17 @@
+{name,"gmminer"}.
+{type,lib}.
+{modules,[]}.
+{prefix,none}.
+{author,"QPQ AG"}.
+{desc,"Gajumaru Cuckoo Cycle mining support"}.
+{package_id,{"uwiger","gmminer",{1,0,1}}}.
+{deps,[{"uwiger","gmcuckoo",{1,1,0}}]}.
+{key_name,none}.
+{a_email,"ulf@wiger.net"}.
+{c_email,"ulf@wiger.net"}.
+{copyright,"QPQ AG"}.
+{file_exts,[]}.
+{license,"GPL-3.0-or-later"}.
+{repo_url,"https://git.qpq.swiss/QPQ-AG/gmminer"}.
+{tags,[]}.
+{ws_url,[]}.

zompify.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+set -e
+
+APP=$(basename "$PWD")
+SRC="_build/default/lib/$APP"
+DST="$PWD/_build/zomp/lib/$APP"
+mkdir -p "$DST"
+find "$SRC" -type l ! -exec test -e {} \; -delete
+cp -aR -L "$SRC/." "$DST/"
+cp "$PWD/zomp.meta" "$DST/"
+cp "$PWD/Emakefile" "$DST"
+rm "$DST"/ebin/*.beam