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-rw-r--r--.gitignore1
-rw-r--r--CMakeLists.txt203
-rw-r--r--LICENCE502
-rw-r--r--Plugin.cmake14
-rw-r--r--README.md85
-rw-r--r--cmake/CompilerOptimizations.cmake53
-rw-r--r--cmake/Modules/FindCsound.cmake62
-rw-r--r--examples/get.csd68
-rw-r--r--examples/post.csd46
-rw-r--r--include/handling.h53
-rw-r--r--src/opcodes.cpp355
11 files changed, 1442 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..567609b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build/
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..612d056
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,203 @@
+# from https://github.com/csound/plugins : common CMake operations
+cmake_minimum_required(VERSION 2.8.12)
+project(Csound-plugins)
+
+if (${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
+ set(CMAKE_COMPILER_IS_CLANG 1)
+endif()
+
+# C++11 needed
+if(NOT MSVC)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+endif()
+
+set(APIVERSION "6.0")
+
+set(CMAKE_MACOSX_RPATH 1)
+set(CMAKE_VERBOSE_MAKEFILE ON)
+set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")
+
+include(TestBigEndian)
+include(CheckFunctionExists)
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
+
+### COMPILER OPTIMIZATION FLAGS
+option(USE_COMPILER_OPTIMIZATIONS "Use the default Csound compiler optimization flags" ON)
+if(USE_COMPILER_OPTIMIZATIONS)
+ include(${CMAKE_SOURCE_DIR}/cmake/CompilerOptimizations.cmake)
+endif()
+
+if(APPLE)
+ set(OSX_VERSION " ")
+endif()
+
+## USER OPTIONS ##
+# Optional targets, they should all default to ON (check_deps will disable them if not possible to build)
+option(USE_DOUBLE "Set to use double-precision floating point for audio samples." ON)
+option(USE_LRINT "Use lrint/lrintf for converting floating point values to integers." ON)
+option(BUILD_RELEASE "Build for release" ON)
+option(USE_GIT_COMMIT "Show the git commit in version information" ON)
+
+# in Release configuration, set NDEBUG
+if(${CMAKE_BUILD_TYPE} MATCHES "Release")
+message("-----> Release mode")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNDEBUG")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DNDEBUG")
+elseif(${CMAKE_BUILD_TYPE} MATCHES "Debug")
+message("-----> Debug mode")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DBETA")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBETA")
+endif()
+
+# set -Werror if in Debug configuration
+if(NOT MSVC AND NOT WASM)
+ set(CMAKE_CXX_FLAGS_RELEASE "-O3 ")
+ set(CMAKE_C_FLAGS_RELEASE "-O3 ")
+ if(${CMAKE_BUILD_TYPE} MATCHES "Debug")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror -Wno-missing-field-initializers")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Werror -Wno-missing-field-initializers")
+ endif()
+endif()
+
+
+if(CMAKE_SYSTEM_NAME MATCHES "Linux")
+ set(LINUX YES)
+else()
+ set(LINUX NO)
+endif()
+
+set(BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR})
+
+check_c_compiler_flag(-fvisibility=hidden HAS_VISIBILITY_HIDDEN)
+check_cxx_compiler_flag(-fvisibility=hidden HAS_CXX_VISIBILITY_HIDDEN)
+if (HAS_VISIBILITY_HIDDEN)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden")
+endif()
+if (HAS_CXX_VISIBILITY_HIDDEN)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
+endif()
+
+check_c_compiler_flag(-std=gnu99 HAS_GNU99)
+if (HAS_GNU99)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99")
+endif()
+if (HAS_CXX_VISIBILITY_HIDDEN)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
+endif()
+
+find_package(Csound)
+
+option(USE_LIB64 "Set to on to set installation directory for libraries to lib64" OFF)
+if(USE_LIB64)
+ set(LIBRARY_INSTALL_DIR "lib64")
+ add_definitions("-DLIB64")
+else()
+ set(LIBRARY_INSTALL_DIR "lib")
+endif()
+message(STATUS "LIBRARY INSTALL DIR: ${LIBRARY_INSTALL_DIR}")
+
+if(USE_DOUBLE)
+ message(STATUS "Building with 64-bit floats")
+ set(PLUGIN_INSTALL_DIR "${LIBRARY_INSTALL_DIR}/csound/plugins64-${APIVERSION}")
+ if(APPLE)
+ set(PLUGIN_INSTALL_DIR "${CS_FRAMEWORK_DEST}/${CSOUNDLIB}.framework/Versions/${APIVERSION}/Resources/Opcodes64")
+ endif()
+else()
+ message(STATUS "Building with 32-bit floats")
+ set(PLUGIN_INSTALL_DIR "${LIBRARY_INSTALL_DIR}/csound/plugins-${APIVERSION}")
+ if(APPLE)
+ set(PLUGIN_INSTALL_DIR "${CS_FRAMEWORK_DEST}/${CSOUNDLIB}.framework/Versions/${APIVERSION}/Resources/Opcodes")
+ endif()
+endif()
+
+
+# Checks if dependencies for an enabled target are fulfilled.
+# If FAIL_MISSING is true and the dependencies are not fulfilled,
+# it will abort the cmake run.
+# If FAIL_MISSING is false, it will set the option to OFF.
+# If the target is not enabled, it will do nothing.
+# example: check_deps(BUILD_NEW_PARSER FLEX_EXECUTABLE BISON_EXECUTABLE)
+function(check_deps option)
+ if(${option})
+ set(i 1)
+ while( ${i} LESS ${ARGC} )
+ set(dep ${ARGV${i}})
+ if(NOT ${dep})
+ if(FAIL_MISSING)
+ message(FATAL_ERROR
+ "${option} is enabled, but ${dep}=\"${${dep}}\"")
+ else()
+ message(STATUS "${dep}=\"${${dep}}\", so disabling ${option}")
+ set(${option} OFF PARENT_SCOPE)
+ # Set it in the local scope too
+ set(${option} OFF)
+ endif()
+ endif()
+ math(EXPR i "${i}+1")
+ endwhile()
+ endif()
+ if(${option})
+ message(STATUS "${option} is enabled.")
+ else()
+ message(STATUS "${option} is disabled.")
+ endif()
+endfunction(check_deps)
+
+# Utility function to make plugins. All plugin targets should use this as it
+# sets up output directory set in top-level CmakeLists.txt
+# and adds the appropriate install target
+#
+# libname - name of library to produce
+# srcs - list of src files (must be quoted if a list)
+# extralibs (OPTIONAL) - extra libraries to link the plugin to
+#
+# NB - this was moved here as it needs some VARS defined above
+# for setting up the framework
+function(make_plugin libname srcs)
+ if(APPLE)
+ add_library(${libname} SHARED ${srcs})
+ else()
+ add_library(${libname} MODULE ${srcs})
+ endif()
+
+ set(i 2)
+ while( ${i} LESS ${ARGC} )
+ target_link_libraries(${libname} ${ARGV${i}})
+ math(EXPR i "${i}+1")
+ endwhile()
+
+ set_target_properties(${libname} PROPERTIES
+ RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+ LIBRARY_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+ ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+
+ install(TARGETS ${libname}
+ LIBRARY DESTINATION "${PLUGIN_INSTALL_DIR}"
+ ARCHIVE DESTINATION "${PLUGIN_INSTALL_DIR}" )
+endfunction(make_plugin)
+
+# Linux does not have a separate libintl, it is part of libc
+set(LIBINTL_AVAIL (LIBINTL_LIBRARY OR LINUX))
+
+if(LINUX)
+ message(STATUS "Building on Linux.")
+ add_definitions(-DLINUX -DPIPES -D_GNU_SOURCE -DHAVE_SOCKETS)
+ list(APPEND libcsound_LIBS ${MATH_LIBRARY} dl)
+
+endif()
+
+if(APPLE AND NOT IOS)
+ message(STATUS "Building on OSX")
+ add_definitions(-DMACOSX -DPIPES -DNO_FLTK_THREADS -DHAVE_SOCKETS)
+ find_library(ACCELERATE_LIBRARY Accelerate)
+ find_path(VECLIB_PATH "Accelerate/Accelerate.h")
+ include_directories(${VECLIB_PATH})
+ list(APPEND libcsound_LIBS ${MATH_LIBRARY} dl ${ACCELERATE_LIBRARY})
+endif()
+
+if(WIN32)
+ add_definitions(-DWIN32)
+endif()
+
+include(Plugin.cmake)
diff --git a/LICENCE b/LICENCE
new file mode 100644
index 0000000..de9fd5a
--- /dev/null
+++ b/LICENCE
@@ -0,0 +1,502 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin St, 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.
+
+[This is the first released version of the Lesser GPL. It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
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+ This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it. You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+ When we speak of free software, we are referring to freedom of use,
+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 this service if you wish); that you receive source code or can get
+it if you want it; that you can change the software and use pieces of
+it in new free programs; and that you are informed that you can do
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+ We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
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+General Public License, applies to certain designated libraries, and
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+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 12. If the distribution and/or use of the Library is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Library under this License may add
+an explicit geographical distribution limitation excluding those countries,
+so that distribution is permitted only in or among countries not thus
+excluded. In such case, this License incorporates the limitation as if
+written in the body of this License.
+
+ 13. The Free Software Foundation may publish revised and/or new
+versions of the Lesser 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 Library
+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 Library does not specify a
+license version number, you may choose any version ever published by
+the Free Software Foundation.
+^L
+ 14. If you wish to incorporate parts of the Library into other free
+programs whose distribution conditions are incompatible with these,
+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
+
+ 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
+WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
+OTHER PARTIES PROVIDE THE LIBRARY "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
+LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
+THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. 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 LIBRARY 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
+LIBRARY (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 LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
+SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+^L
+ How to Apply These Terms to Your New Libraries
+
+ If you develop a new library, and you want it to be of the greatest
+possible use to the public, we recommend making it free software that
+everyone can redistribute and change. You can do so by permitting
+redistribution under these terms (or, alternatively, under the terms of the
+ordinary General Public License).
+
+ To apply these terms, attach the following notices to the library. 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.
+
+ <one line to give the library's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Also add information on how to contact you by electronic and paper mail.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the library, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the
+ library `Frob' (a library for tweaking knobs) written by James Random Hacker.
+
+ <signature of Ty Coon>, 1 April 1990
+ Ty Coon, President of Vice
+
+That's all there is to it!
diff --git a/Plugin.cmake b/Plugin.cmake
new file mode 100644
index 0000000..53368aa
--- /dev/null
+++ b/Plugin.cmake
@@ -0,0 +1,14 @@
+set(PLUGIN_NAME curl)
+set(LIBS "")
+set(INCLUDES ${CSOUND_INCLUDE_DIRS} "include")
+
+# Dependencies
+find_package(CURL)
+check_deps(CURL_FOUND)
+list(APPEND LIBS ${CURL_LIBRARIES})
+list(APPEND INCLUDES ${CURL_INCLUDE_DIRS})
+
+# Source files
+set(CPPFILES src/opcodes.cpp)
+make_plugin(${PLUGIN_NAME} "${CPPFILES}")
+target_include_directories(${PLUGIN_NAME} PRIVATE ${INCLUDES})
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0645267
--- /dev/null
+++ b/README.md
@@ -0,0 +1,85 @@
+# csound-curl : simple HTTP GET and POST requests from Csound
+
+## Overview
+csound-curl provides opcodes to perform basic HTTP GET and POST requests at init time and k-rate. SSL hosts are supported. It can be used with the csound-json plugin opcodes in order to effectively communicate with web services and such.
+
+## Requirements
+* Cmake >= 2.8.12
+* Csound with development headers >= 6.14.0
+* libCURL >= 7.26.0
+
+
+
+## Installation
+Create a build directory at the top of the source tree, execute *cmake ..*, *make* and optionally *make install* as root. If the latter is not used/possible then the resulting library can be used with the *--opcode-lib* flag in Csound.
+eg:
+
+ mkdir build && cd build
+ cmake ..
+ make && sudo make install
+
+Cmake should find Csound and any other required libraries using the modules in the cmake/Modules directory and installation should be as simple as above.
+
+## Examples
+Some examples are provided in the examples directory.
+
+
+## Opcode reference
+Due to possible delays incurred by network processes, the init-time opcodes may interrupt any current activity in Csound. For example, audio may be subject to dropouts. As a result it may be ideal only to use the init time opcodes at performance initialisation, and use the k-rate opcodes if requests are required during performance.
+
+
+### ires, Sres curlget Surl
+Perform a GET request at init time.
+
+* ires : HTTP response code
+* Sres : response body
+
+* Surl : URL to request
+
+
+### ires, Sres curlpost Surl, SpostData
+Perform a POST request at init time.
+
+* ires : HTTP response code
+* Sres : response body
+
+* Surl : URL to request
+* SpostData : data to post, should be URL encoded if required
+
+
+### kdone, kres, Sres curlgetk Surl
+Perform a GET request at k-rate.
+
+* kdone : trigger to specify if the request has completed (1 if so, 0 at all other times)
+* kres : HTTP response code
+* Sres : response body
+
+* Surl : URL to request
+
+
+### kdone, kres, Sres curlpostk Surl, SpostData
+Perform a POST request at k-rate.
+
+* kdone : trigger to specify if the request has completed (1 if so, 0 at all other times)
+* kres : HTTP response code
+* Sres : response body
+
+* Surl : URL to request
+* SpostData : data to post, should be URL encoded if required
+
+
+### Sencoded curlurlencode Sinput
+URL encode a string at init time.
+
+* Sinput : the string to be encoded
+
+* Sencoded : the encoded string
+
+
+### Sencoded curlurlencodek Sinput, ktrigger
+URL encode a string at k-rate upon receipt of a trigger.
+
+* Sinput : the string to be encoded
+* ktrigger : encode the string when this is set to 1
+
+* Sencoded : the encoded string \ No newline at end of file
diff --git a/cmake/CompilerOptimizations.cmake b/cmake/CompilerOptimizations.cmake
new file mode 100644
index 0000000..543daf8
--- /dev/null
+++ b/cmake/CompilerOptimizations.cmake
@@ -0,0 +1,53 @@
+
+check_c_compiler_flag(-ftree-vectorize HAS_TREE_VECTORIZE)
+check_cxx_compiler_flag(-ftree-vectorize HAS_CXX_TREE_VECTORIZE)
+if (HAS_TREE_VECTORISE)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ftree-vectorize")
+endif()
+if (HAS_CXX_TREE_VECTORISE)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftree-vectorize")
+endif()
+
+
+check_c_compiler_flag(-ffast-math HAS_FAST_MATH)
+check_cxx_compiler_flag(-ffast-math HAS_CXX_FAST_MATH)
+if (HAS_FAST_MATH AND NOT MINGW)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffast-math")
+endif()
+if (HAS_CXX_FAST_MATH AND NOT MINGW)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffast-math")
+endif()
+
+
+
+if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+check_c_compiler_flag(-mfpmath=sse HAS_FPMATH_SSE)
+check_cxx_compiler_flag(-mfpmath=sse HAS_CXX_FPMATH_SSE)
+ if (HAS_FPMATH_SSE)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpmath=sse")
+endif()
+if (HAS_CXX_FPMATH_SSE)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpmath=sse")
+endif()
+
+endif()
+
+
+check_c_compiler_flag(-msse2 HAS_SSE2)
+check_cxx_compiler_flag(-msse2 HAS_CXX_SSE2)
+ if (HAS_SSE2 AND NOT IOS AND NOT WASM)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse2")
+endif()
+if (HAS_CXX_SSE2 AND NOT IOS AND NOT WASM)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse2")
+endif()
+
+
+check_c_compiler_flag(-fomit-frame-pointer HAS_OMIT_FRAME_POINTER)
+check_cxx_compiler_flag(-fomit-frame-pointer HAS_CXX_OMIT_FRAME_POINTER)
+if (HAS_OMIT_FRAME_POINTER)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fomit-frame-pointer")
+endif()
+if (HAS_CXX_OMIT_FRAME_POINTER)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fomit-frame-pointer")
+endif()
diff --git a/cmake/Modules/FindCsound.cmake b/cmake/Modules/FindCsound.cmake
new file mode 100644
index 0000000..24c90d9
--- /dev/null
+++ b/cmake/Modules/FindCsound.cmake
@@ -0,0 +1,62 @@
+# Try to find the Csound library.
+# Once done this will define:
+# CSOUND_FOUND - System has the Csound library
+# CSOUND_INCLUDE_DIRS - The Csound include directories.
+# CSOUND_LIBRARIES - The libraries needed to use the Csound library.
+
+# RKnight 2021-07-21 : quick copy paste hack to deal with 32 bit if not using double
+
+if(USE_DOUBLE)
+ # 64 bit
+ if(APPLE)
+ find_path(CSOUND_INCLUDE_DIR csound.h HINTS /Library/Frameworks/CsoundLib64.framework/Headers
+ "$ENV{HOME}/Library/Frameworks/CsoundLib64.framework/Headers")
+ elseif(WIN32)
+ find_path(CSOUND_INCLUDE_DIR csound.h PATH_SUFFIXES csound
+ HINTS "c:\\Program Files\\Csound6_x64\\include")
+ else()
+ find_path(CSOUND_INCLUDE_DIR csound.h PATH_SUFFIXES csound)
+ endif()
+
+ if(APPLE)
+ find_library(CSOUND_LIBRARY NAMES CsoundLib64 HINTS /Library/Frameworks/CsoundLib64.framework/
+ "$ENV{HOME}/Library/Frameworks/CsoundLib64.framework")
+ elseif(WIN32)
+ find_library(CSOUND_LIBRARY NAMES csound64 HINTS "c:\\Program Files\\Csound6_x64\\lib")
+ else()
+ find_library(CSOUND_LIBRARY NAMES csound64 csound)
+ endif()
+
+else()
+ # 32 bit
+ if(APPLE)
+ find_path(CSOUND_INCLUDE_DIR csound.h HINTS /Library/Frameworks/CsoundLib.framework/Headers
+ "$ENV{HOME}/Library/Frameworks/CsoundLib.framework/Headers")
+ elseif(WIN32)
+ find_path(CSOUND_INCLUDE_DIR csound.h PATH_SUFFIXES csound
+ HINTS "c:\\Program Files (x86)\\Csound6\\include")
+ else()
+ find_path(CSOUND_INCLUDE_DIR csound.h PATH_SUFFIXES csound)
+ endif()
+
+ if(APPLE)
+ find_library(CSOUND_LIBRARY NAMES CsoundLib HINTS /Library/Frameworks/CsoundLib.framework/
+ "$ENV{HOME}/Library/Frameworks/CsoundLib.framework")
+ elseif(WIN32)
+ find_library(CSOUND_LIBRARY NAMES csound HINTS "c:\\Program Files (x86)\\Csound6\\lib")
+ else()
+ find_library(CSOUND_LIBRARY NAMES csound csound)
+ endif()
+
+endif()
+
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set CSOUND_FOUND to TRUE
+# if all listed variables are TRUE
+find_package_handle_standard_args(CSOUND
+ CSOUND_LIBRARY CSOUND_INCLUDE_DIR)
+mark_as_advanced(CSOUND_INCLUDE_DIR CSOUND_LIBRARY)
+
+set(CSOUND_INCLUDE_DIRS ${CSOUND_INCLUDE_DIR})
+set(CSOUND_LIBRARIES ${CSOUND_LIBRARY} )
diff --git a/examples/get.csd b/examples/get.csd
new file mode 100644
index 0000000..d373025
--- /dev/null
+++ b/examples/get.csd
@@ -0,0 +1,68 @@
+<CsoundSynthesizer>
+<CsOptions>
+-odac
+</CsOptions>
+<CsInstruments>
+sr = 44100
+kr = 4410
+nchnls = 2
+0dbfs = 1
+
+; basic oscillator to see how audio is affected
+instr oscil
+ a1 oscil 0.1, 440
+ outs a1, a1
+endin
+
+
+; test the URL encoding opcode by encoding a string and printing
+instr urlencode
+ Sinput = "<&>!>"
+ Sencoded curlurlencode Sinput
+ prints sprintf("Encoding '%s' to: ", Sinput)
+
+ ; output contains % which confuses prints. So loop through and print each character accordingly
+ index = 0
+ while (index < strlen(Sencoded)) do
+ Schar = strsub(Sencoded, index, index + 1)
+ if (strcmp(Schar, "%") == 0) then
+ Schar = "%%"
+ endif
+ prints Schar
+ index += 1
+ od
+ prints "\n\n"
+ turnoff
+endin
+
+
+; issue a GET request at init time and display the output
+instr irate
+ prints "init time get: may cause audio dropout\n\n"
+ ires, Sres curlget "http://csound.1bpm.net/_curl_plugin_example/get"
+ print ires
+ prints Sres
+ prints "\n"
+ turnoff
+endin
+
+
+; issue a GET request at k-rate and display the output
+instr krate
+ prints "k-rate threaded get: should not affect audio\n\n"
+ kdone, kres, Sres curlgetk "http://csound.1bpm.net/_curl_plugin_example/get"
+ if (kdone == 1) then
+ printf "res %d ; %s\n", kdone, kres, Sres
+ turnoff
+ endif
+endin
+
+</CsInstruments>
+<CsScore>
+i"oscil" 0 5
+i"urlencode" 0 1
+i"irate" 1 1
+i"krate" 3 1
+</CsScore>
+</CsoundSynthesizer>
+
diff --git a/examples/post.csd b/examples/post.csd
new file mode 100644
index 0000000..21535bd
--- /dev/null
+++ b/examples/post.csd
@@ -0,0 +1,46 @@
+<CsoundSynthesizer>
+<CsOptions>
+-odac
+</CsOptions>
+<CsInstruments>
+sr = 44100
+kr = 4410
+nchnls = 2
+0dbfs = 1
+
+; basic oscillator to see how audio is affected
+instr oscil
+ a1 oscil 0.1, 440
+ outs a1, a1
+endin
+
+
+; issue a POST request at init time and display the output
+instr irate
+ prints "init time post: may cause audio dropout\n\n"
+ ires, Sres curlpost "http://csound.1bpm.net/_curl_plugin_example/post", "Hello from Csound"
+ print ires
+ prints Sres
+ prints "\n"
+ turnoff
+endin
+
+
+; issue a POST request at k-rate and display the output
+instr krate
+ prints "k-rate threaded post: should not affect audio\n\n"
+ kdone, kres, Sres curlpostk "http://csound.1bpm.net/_curl_plugin_example/post", "Hello from Csound"
+ if (kdone == 1) then
+ printf "res %d ; %s\n", kdone, kres, Sres
+ turnoff
+ endif
+endin
+
+</CsInstruments>
+<CsScore>
+i"oscil" 0 5
+i"irate" 1 1
+i"krate" 3 1
+</CsScore>
+</CsoundSynthesizer>
+
diff --git a/include/handling.h b/include/handling.h
new file mode 100644
index 0000000..c5e0691
--- /dev/null
+++ b/include/handling.h
@@ -0,0 +1,53 @@
+/*
+ handling.h
+ Copyright (C) 2021 Richard Knight
+
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser 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.
+
+ */
+#include <plugin.h>
+
+const char* handleIdentifier = "::%s%d";
+
+/*
+ * Obtain global object of typename from global variables by handle
+ */
+template <typename T>
+T* getHandle(csnd::Csound* csound, MYFLT handle, const char* name) {
+ char buffer[32];
+ snprintf(buffer, 32, handleIdentifier, name, (int)handle);
+ return (T*) csound->query_global_variable(buffer);
+}
+
+
+/*
+ * Create global object of typename in global variables, returning handle
+ */
+template <typename T>
+MYFLT createHandle(csnd::Csound* csound, T** data, const char* name) {
+ char buffer[32];
+ int handle = 0;
+ snprintf(buffer, 32, handleIdentifier, name, handle);
+ while ((*data = (T*) csound->query_global_variable(buffer)) != NULL) {
+ snprintf(buffer, 32, handleIdentifier, name, ++handle);
+ }
+ csound->create_global_variable(buffer, sizeof(T));
+ *data = (T*) csound->query_global_variable(buffer);
+
+ return FL(handle);
+}
+
+
diff --git a/src/opcodes.cpp b/src/opcodes.cpp
new file mode 100644
index 0000000..5f27f60
--- /dev/null
+++ b/src/opcodes.cpp
@@ -0,0 +1,355 @@
+#include <plugin.h>
+#include "handling.h"
+#include <curl/curl.h>
+#include <atomic>
+
+const char* ciniterror = "cannot initialise CURL";
+
+static size_t write_callback(void* contents, size_t size, size_t nmemb, void *userp) {
+ ((std::string*)userp)->append((char*)contents, size * nmemb);
+ return size * nmemb;
+}
+
+class HTTPRequest {
+private:
+ csnd::Csound* csound;
+ CURL* curl;
+ char* url;
+
+ void curl_reset() {
+ curl_easy_reset(curl);
+ curl_easy_setopt(curl, CURLOPT_URL, url);
+ curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+ curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+ }
+
+public:
+ CURLcode curlResult;
+ char* curlError;
+ long httpResponseCode;
+ std::string response;
+
+ HTTPRequest(csnd::Csound* csound, char* url) :
+ csound(csound),
+ url(url)
+ {
+
+ curl_global_init(CURL_GLOBAL_ALL);
+ curl = curl_easy_init();
+ if (!curl) {
+ curl_global_cleanup();
+ throw std::runtime_error((char*) ciniterror);
+ }
+
+
+ }
+
+ ~HTTPRequest() {
+ curl_easy_cleanup(curl);
+ curl_global_cleanup();
+ }
+
+ void post(char* postdata) {
+ curl_reset();
+ curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postdata);
+ curlResult = curl_easy_perform(curl);
+ if (curlResult != CURLE_OK) {
+ curlError = (char*) curl_easy_strerror(curlResult);
+ }
+ curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &httpResponseCode);
+ }
+
+ void get() {
+ curl_reset();
+ curlResult = curl_easy_perform(curl);
+ if (curlResult != CURLE_OK) {
+ curlError = (char*) curl_easy_strerror(curlResult);
+ }
+ curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &httpResponseCode);
+ }
+
+
+};
+
+
+class RequestThread : public csnd::Thread {
+ std::atomic_bool spinlock;
+ std::atomic_bool on;
+ int sleepTime;
+public:
+ HTTPRequest* req;
+ char* postdata;
+ bool dopost;
+ char* error;
+ bool errored;
+ bool done;
+ bool pending;
+ RequestThread(csnd::Csound* csound, char* url, bool dopost, char* postdata=NULL) :
+ Thread(csound),
+ done(false),
+ pending(false),
+ on(true),
+ spinlock(false),
+ postdata(postdata),
+ dopost(dopost),
+ sleepTime(10)
+ {
+ try {
+ req = new HTTPRequest(csound, url);
+ } catch (const std::exception &e) {
+ errored = true;
+ error = csound->strdup(req->curlError);
+ }
+ };
+
+ uintptr_t run() {
+ while (on) {
+ lock();
+ if (pending) {
+ try {
+ if (dopost) {
+ req->post(postdata);
+ } else {
+ req->get();
+ }
+
+ if (req->curlResult != CURLE_OK) {
+ errored = true;
+ error = csound->strdup(req->curlError);
+ }
+
+ done = true;
+ pending = false;
+ } catch (const std::exception &e) {
+ errored = true;
+ done = true;
+ pending = false;
+ error = csound->strdup((char*) e.what());
+ }
+ }
+ unlock();
+ csound->sleep(sleepTime);
+ }
+ return 0;
+ }
+
+ void lock() {
+ while (spinlock == true) {
+ csound->sleep(sleepTime);
+ }
+ spinlock = true;
+ }
+
+ void unlock() {
+ spinlock = false;
+ }
+
+ void stop() {
+ on = false;
+ }
+};
+
+
+struct curlpostk : csnd::Plugin<3, 2> {
+ static constexpr char const *otypes = "kkS";
+ static constexpr char const *itypes = "SS";
+ RequestThread request;
+
+ int init() {
+ csound->plugin_deinit(this);
+ STRINGDAT &url = inargs.str_data(0);
+ STRINGDAT &postdata = inargs.str_data(1);
+ csnd::constr(&request, csound, url.data, true, postdata.data);
+ return OK;
+ }
+
+ int deinit() {
+ request.stop();
+ request.join();
+ csnd::destr(&request);
+ return OK;
+ }
+
+ int kperf() {
+ outargs[0] = FL(0);
+ if (request.done) {
+ if (request.errored) {
+ return csound->perf_error(request.error, this);
+ }
+ outargs[0] = FL(1);
+ } else if (!request.pending) {
+ request.lock();
+ request.pending = true;
+ request.unlock();
+ }
+ outargs[1] = (MYFLT) request.req->httpResponseCode;
+ STRINGDAT &resultstring = outargs.str_data(2);
+ resultstring.data = csound->strdup((char*) request.req->response.c_str());
+ resultstring.size = request.req->response.size();
+ return OK;
+ }
+};
+
+
+struct curlgetk : csnd::Plugin<3, 1> {
+ static constexpr char const *otypes = "kkS";
+ static constexpr char const *itypes = "S";
+ RequestThread request;
+
+ int init() {
+ csound->plugin_deinit(this);
+ STRINGDAT &url = inargs.str_data(0);
+ csnd::constr(&request, csound, url.data, false);
+ return OK;
+ }
+
+ int deinit() {
+ request.stop();
+ request.join();
+ csnd::destr(&request);
+ return OK;
+ }
+
+ int kperf() {
+ outargs[0] = FL(0);
+ if (request.done) {
+ if (request.errored) {
+ return csound->perf_error(request.error, this);
+ }
+ outargs[0] = FL(1);
+ } else if (!request.pending) {
+ request.lock();
+ request.pending = true;
+ request.unlock();
+ }
+ outargs[1] = (MYFLT) request.req->httpResponseCode;
+ STRINGDAT &resultstring = outargs.str_data(2);
+ resultstring.data = csound->strdup((char*) request.req->response.c_str());
+ resultstring.size = request.req->response.size();
+ return OK;
+ }
+};
+
+
+
+struct curlpost : csnd::Plugin<2, 2> {
+ static constexpr char const *otypes = "iS";
+ static constexpr char const *itypes = "SS";
+
+ int init() {
+ STRINGDAT &url = inargs.str_data(0);
+ STRINGDAT &postdata = inargs.str_data(1);
+
+ HTTPRequest* req;
+ try {
+ req = new HTTPRequest(csound, url.data);
+ } catch (const std::exception &e) {
+ csound->init_error(csound->strdup((char*) e.what()));
+ }
+
+ req->post(postdata.data);
+
+ if (req->curlResult != CURLE_OK) {
+ return csound->init_error(csound->strdup(req->curlError));
+ }
+
+ outargs[0] = (MYFLT) req->httpResponseCode;
+ STRINGDAT &resultstring = outargs.str_data(1);
+ resultstring.data = csound->strdup((char*) req->response.c_str());
+ resultstring.size = req->response.size();
+
+ return OK;
+ }
+
+};
+
+
+struct curlget : csnd::Plugin<2, 1> {
+ static constexpr char const *otypes = "iS";
+ static constexpr char const *itypes = "S";
+
+ int init() {
+ STRINGDAT &url = inargs.str_data(0);
+
+ HTTPRequest* req;
+ try {
+ req = new HTTPRequest(csound, url.data);
+ } catch (const std::exception &e) {
+ csound->init_error(csound->strdup((char*) e.what()));
+ }
+
+ req->get();
+
+ if (req->curlResult != CURLE_OK) {
+ return csound->init_error(csound->strdup(req->curlError));
+ }
+
+ outargs[0] = (MYFLT) req->httpResponseCode;
+ STRINGDAT &resultstring = outargs.str_data(1);
+ resultstring.data = csound->strdup((char*) req->response.c_str());
+ resultstring.size = req->response.size();
+
+ return OK;
+ }
+
+};
+
+
+struct curlurlencode : csnd::Plugin<1, 1> {
+ static constexpr char const *otypes = "S";
+ static constexpr char const *itypes = "S";
+
+ int init() {
+ CURL* curl = curl_easy_init();
+ STRINGDAT &input = inargs.str_data(0);
+ STRINGDAT &output = outargs.str_data(0);
+ char* encoded = curl_easy_escape(curl, input.data, strlen(input.data));
+ output.data = csound->strdup(encoded);
+ output.size = strlen(output.data);
+ curl_free(encoded);
+ curl_easy_cleanup(curl);
+ return OK;
+ }
+};
+
+struct curlurlencodek : csnd::Plugin<1, 2> {
+ static constexpr char const *otypes = "S";
+ static constexpr char const *itypes = "Sk";
+ CURL* curl;
+
+ int init() {
+ csound->plugin_deinit(this);
+ curl = curl_easy_init();
+ return OK;
+ }
+
+ int kperf() {
+ if (inargs[1] == 1) {
+ STRINGDAT &input = inargs.str_data(0);
+ STRINGDAT &output = outargs.str_data(0);
+ char* encoded = curl_easy_escape(curl, input.data, strlen(input.data));
+ output.data = csound->strdup(encoded);
+ output.size = strlen(output.data);
+ curl_free(encoded);
+ }
+ return OK;
+ }
+
+ int deinit() {
+ curl_easy_cleanup(curl);
+ return OK;
+ }
+};
+
+
+#include <modload.h>
+void csnd::on_load(csnd::Csound *csound) {
+ csnd::plugin<curlpost>(csound, "curlpost", csnd::thread::i);
+ csnd::plugin<curlget>(csound, "curlget", csnd::thread::i);
+ csnd::plugin<curlpostk>(csound, "curlpostk", csnd::thread::ik);
+ csnd::plugin<curlgetk>(csound, "curlgetk", csnd::thread::ik);
+ csnd::plugin<curlurlencode>(csound, "curlurlencode", csnd::thread::i);
+ csnd::plugin<curlurlencodek>(csound, "curlurlencodek", csnd::thread::ik);
+}