commit aa14d823043eb0cbd72bdec3283c8aa17c810800 Author: Daniil Gentili Date: Sat May 6 18:32:27 2017 +0100 First commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..9d22eb4 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +*.o +*.so diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..d159169 --- /dev/null +++ b/LICENSE @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute 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 and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. 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Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +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 +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. 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The Free Software Foundation may publish revised and/or new versions +of the 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 a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE 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. + + 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 +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + 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 2 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, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision 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, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This 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. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..f01dda7 --- /dev/null +++ b/Makefile @@ -0,0 +1,141 @@ +# +# Makefile template +# +# This is an example Makefile that can be used by anyone who is building +# his or her own PHP extensions using the PHP-CPP library. +# +# In the top part of this file we have included variables that can be +# altered to fit your configuration, near the bottom the instructions and +# dependencies for the compiler are defined. The deeper you get into this +# file, the less likely it is that you will have to change anything in it. +# + +# +# Name of your extension +# +# This is the name of your extension. Based on this extension name, the +# name of the library file (name.so) and the name of the config file (name.ini) +# are automatically generated +# + +NAME = primemodule + +# +# Php.ini directories +# +# In the past, PHP used a single php.ini configuration file. Today, most +# PHP installations use a conf.d directory that holds a set of config files, +# one for each extension. Use this variable to specify this directory. +# +# In Ubuntu 14.04 Apache 2.4 is used, which uses the mods-available directory +# instead of a conf.d directory. In 16.04 the directory changed yet again. +# This has to be checked. +# + +UBUNTU_MAJOR := $(shell /usr/bin/lsb_release -r -s | cut -f1 -d.) +OVER_SIXTEEN := $(shell echo "${UBUNTU_MAJOR} >= 16" | bc) +OVER_FOURTEEN := $(shell echo "${UBUNTU_MAJOR} >= 14" | bc) + +ifeq (${OVER_SIXTEEN}, 1) + INI_DIR = /etc/php/7.0/mods-available/ +else ifeq (${OVER_FOURTEEN}, 1) + INI_DIR = /etc/php5/mods-available/ +else + INI_DIR = /etc/php5/conf.d/ +endif + +# +# The extension dirs +# +# This is normally a directory like /usr/lib/php5/20121221 (based on the +# PHP version that you use. We make use of the command line 'php-config' +# instruction to find out what the extension directory is, you can override +# this with a different fixed directory +# + +EXTENSION_DIR = $(shell php-config --extension-dir) + +# +# The name of the extension and the name of the .ini file +# +# These two variables are based on the name of the extension. We simply add +# a certain extension to them (.so or .ini) +# + +EXTENSION = ${NAME}.so +INI = ${NAME}.ini + +# +# Compiler +# +# By default, the GNU C++ compiler is used. If you want to use a different +# compiler, you can change that here. You can change this for both the +# compiler (the program that turns the c++ files into object files) and for +# the linker (the program that links all object files into the single .so +# library file. By default, g++ (the GNU C++ compiler) is used for both. +# + +COMPILER = g++ +LINKER = g++ + +# +# Compiler and linker flags +# +# This variable holds the flags that are passed to the compiler. By default, +# we include the -O2 flag. This flag tells the compiler to optimize the code, +# but it makes debugging more difficult. So if you're debugging your application, +# you probably want to remove this -O2 flag. At the same time, you can then +# add the -g flag to instruct the compiler to include debug information in +# the library (but this will make the final libphpcpp.so file much bigger, so +# you want to leave that flag out on production servers). +# +# If your extension depends on other libraries (and it does at least depend on +# one: the PHP-CPP library), you should update the LINKER_DEPENDENCIES variable +# with a list of all flags that should be passed to the linker. +# + +COMPILER_FLAGS = -Wall -c -std=c++11 -fpic -finline-functions -ffast-math -O3 -o +LINKER_FLAGS = -shared +LINKER_DEPENDENCIES = -lphpcpp + +# +# Command to remove files, copy files and create directories. +# +# I've never encountered a *nix environment in which these commands do not work. +# So you can probably leave this as it is +# + +RM = rm -f +CP = cp -f +MKDIR = mkdir -p + +# +# All source files are simply all *.cpp files found in the current directory +# +# A built-in Makefile macro is used to scan the current directory and find +# all source files. The object files are all compiled versions of the source +# file, with the .cpp extension being replaced by .o. +# + +SOURCES = $(wildcard *.cpp) +OBJECTS = $(SOURCES:%.cpp=%.o) + +# +# From here the build instructions start +# + +all: ${OBJECTS} ${EXTENSION} + +${EXTENSION}: ${OBJECTS} + ${LINKER} ${LINKER_FLAGS} -o $@ ${OBJECTS} ${LINKER_DEPENDENCIES} + +${OBJECTS}: + ${COMPILER} ${COMPILER_FLAGS} $@ ${@:%.o=%.cpp} + +install: + ${CP} ${EXTENSION} ${EXTENSION_DIR} + ${CP} ${INI} ${INI_DIR} + +clean: + ${RM} ${EXTENSION} ${OBJECTS} + diff --git a/README.md b/README.md new file mode 100644 index 0000000..1d489b8 --- /dev/null +++ b/README.md @@ -0,0 +1,5 @@ +# PrimeModule-ext + +PHP extension for factorizing huge (up to 2^63-1) semiprimes. + + diff --git a/example.php b/example.php new file mode 100644 index 0000000..6a568f1 --- /dev/null +++ b/example.php @@ -0,0 +1,4 @@ + + + +inline uint64_t gcd(uint64_t a, uint64_t b) { + while (a != 0 && b != 0) { + while ((b & 1) == 0) { + b >>= 1; + } + while ((a & 1) == 0) { + a >>= 1; + } + if (a > b) { + a -= b; + } else { + b -= a; + } + } + return b == 0 ? a : b; +} +inline Php::Value factorize(Php::Parameters ¶meters) +{ + uint64_t what = (int64_t) parameters[0]; + uint32_t p; + uint32_t q; + int32_t it = 0, i, j; + uint64_t g = 0; + for (i = 0; i < 3 || it < 1000; i++) { + uint64_t t = ((lrand48() & 15) + 17) % what; + uint64_t x = (long long) lrand48() % (what - 1) + 1, y = x; + int32_t lim = 1 << (i + 18); + for (j = 1; j < lim; j++) { + ++it; + uint64_t a = x, b = x, c = t; + while (b) { + if (b & 1) { + c += a; + if (c >= what) { + c -= what; + } + } + a += a; + if (a >= what) { + a -= what; + } + b >>= 1; + } + x = c; + uint64_t z = x < y ? what + x - y : x - y; + g = gcd(z, what); + if (g != 1) { + break; + } + if (!(j & (j - 1))) { + y = x; + } + } + if (g > 1 && g < what) { + break; + } + } + + if (g > 1 && g < what) { + p = (uint32_t) g; + q = (uint32_t) (what / g); + if (p > q) { + uint32_t tmp = p; + p = q; + q = tmp; + } + Php::Value result; + result[0] = (int32_t) p; + result[1] = (int32_t) q; + return result; + } else { + throw Php::Exception("Factorization failed!"); + return false; + } +} + +extern "C" { + PHPCPP_EXPORT void *get_module() { + static Php::Extension extension("primemodule", "1.0"); + extension.add("factorize", { + Php::ByVal("pq", Php::Type::Numeric), + Php::ByRef("p", Php::Type::Numeric), + Php::ByRef("q", Php::Type::Numeric), + }); + return extension; + } +} + diff --git a/primemodule.ini b/primemodule.ini new file mode 100644 index 0000000..e3d5d0a --- /dev/null +++ b/primemodule.ini @@ -0,0 +1 @@ +extension=primemodule.so