Поиск стандартных каталогов

This commit is contained in:
Andrei Astafev 2019-10-04 12:48:12 +03:00
parent 912e733258
commit 70a5655461
12 changed files with 1207 additions and 10 deletions

@ -1 +1 @@
Subproject commit aba632a1d7d673fb17c85284327b123061f04bc0 Subproject commit d28f78d52115566a8a2be22a77be44f928d8e621

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@ -0,0 +1,45 @@
# Название основной цели в текущем каталоге
set(current_target example-filesystem-minimal)
# Список файлов исходных текстов
set(current_target_sources
${CMAKE_CURRENT_SOURCE_DIR}/minimal.cpp
)
# Путь поиска библиотек внутри проекта
link_directories(${CMAKE_INSTALL_LIBDIR})
link_directories(${CMAKE_BINARY_DIR}/src/filesystem/lib)
# Цель для создания исполняемого файла
add_executable(${current_target} ${current_target_sources})
common_target_properties(${current_target})
add_clang_tidy_check(${current_target} ${current_target_sources})
add_clang_analyze_check(${current_target} ${current_target_sources})
add_clazy_check(${current_target} ${current_target_sources})
add_uncrustify_format(${current_target} ${current_target_sources})
add_pvs_check(${current_target})
# Qt5
# qt_translation(TARGET ${current_target} TS_DIR ${CMAKE_SOURCE_DIR}/l10n LANGUAGES ru_RU)
target_include_directories(${current_target} PRIVATE ${CMAKE_SOURCE_DIR}/src)
target_include_directories(${current_target} SYSTEM PUBLIC ${FMT_INCLUDE_DIRS})
target_include_directories(${current_target} SYSTEM PUBLIC ${SPDLOG_INCLUDE_DIRS})
target_include_directories(${current_target} SYSTEM PUBLIC ${Qt5Core_INCLUDE_DIRS})
target_compile_options(${current_target} PUBLIC "${Qt5Core_EXECUTABLE_COMPILE_FLAGS}")
target_link_libraries(${current_target} filesystem_static)
target_link_libraries(${current_target} Qt5::Core)
# Имя выходного файла для цели
set_target_properties(${current_target}
PROPERTIES
OUTPUT_NAME filesystem-minimal
RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}
)
add_sanitizers(${current_target})
# cotire(${current_target})
# Правила для установки
install(TARGETS ${current_target} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})

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@ -0,0 +1,17 @@
#include "filesystem/paths.hpp"
namespace MF = myx::filesystem;
int main( int argc, char** argv )
{
(void)argc;
(void)argv;
MF::Paths paths;
paths.updatePaths();
paths.makePaths();
paths.findConfigFile( "test" );
return( 0 );
}

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@ -0,0 +1,2 @@
add_subdirectory(01_minimal)

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@ -35,6 +35,6 @@ install(FILES ${CMAKE_BINARY_DIR}/include/cmlib_config.hpp
${CMAKE_BINARY_DIR}/include/config_flags.hpp ${CMAKE_BINARY_DIR}/include/config_flags.hpp
${current_target_headers} ${current_target_headers}
COMPONENT headers COMPONENT headers
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${current_target}) DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}/${current_target})
install(FILES ${CMAKE_BINARY_DIR}/${current_target}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) install(FILES ${CMAKE_BINARY_DIR}/${current_target}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)

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@ -11,7 +11,8 @@ set(current_target_headers
${CMAKE_CURRENT_SOURCE_DIR}/paths.hpp ${CMAKE_CURRENT_SOURCE_DIR}/paths.hpp
) )
add_common_library(TARGET ${current_target} SOURCES ${current_target_sources}) add_common_library(TARGET ${current_target} SOURCES ${current_target_sources}
${CMAKE_SOURCE_DIR}/thirdparty/whereami/whereami.c)
common_target_properties(${current_target}) common_target_properties(${current_target})
add_clang_tidy_check(${current_target} ${current_target_sources}) add_clang_tidy_check(${current_target} ${current_target_sources})
add_clang_analyze_check(${current_target} ${current_target_sources}) add_clang_analyze_check(${current_target} ${current_target_sources})
@ -20,6 +21,10 @@ add_pvs_check(${current_target})
add_uncrustify_format(${current_target} ${current_target_sources} ${current_target_headers}) add_uncrustify_format(${current_target} ${current_target_sources} ${current_target_headers})
target_include_directories(${current_target} SYSTEM PUBLIC ${Qt5Core_INCLUDE_DIRS}) target_include_directories(${current_target} SYSTEM PUBLIC ${Qt5Core_INCLUDE_DIRS})
target_include_directories(${current_target} SYSTEM PUBLIC ${FMT_INCLUDE_DIRS})
target_include_directories(${current_target} SYSTEM PUBLIC ${SPDLOG_INCLUDE_DIRS})
target_include_directories(${current_target} PRIVATE ${CMAKE_SOURCE_DIR}/src/base)
target_include_directories(${current_target} PRIVATE ${CMAKE_SOURCE_DIR}/thirdparty/whereami)
# Цель, используемая только для установки заголовочных файлов без компиляции проекта # Цель, используемая только для установки заголовочных файлов без компиляции проекта
add_custom_target(${current_target}-install-headers add_custom_target(${current_target}-install-headers
@ -34,6 +39,6 @@ if(BUILD_SHARED_LIBS)
endif() endif()
install(FILES ${current_target_headers} install(FILES ${current_target_headers}
COMPONENT headers COMPONENT headers
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${current_target}) DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}/${current_target})
install(FILES ${CMAKE_BINARY_DIR}/${current_target}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) install(FILES ${CMAKE_BINARY_DIR}/${current_target}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)

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@ -1,9 +1,223 @@
#include "paths.hpp" #include "paths.hpp"
#include "config.hpp"
#include "whereami.h"
namespace MF = myx::filesystem; #include <paths.h>
namespace myx {
int32_t MF::init( int32_t i = 0 ) namespace filesystem {
Paths::Paths() :
m_prefixDirectory( "/opt/" ORGANIZATION_NAME_LOWER "/" PROJECT_NAME_LOWER ),
m_binaryDirectory( m_prefixDirectory.absolutePath() + "/bin" ),
m_configDirectory( m_prefixDirectory.absolutePath() + "/etc" ),
m_cacheDirectory( m_prefixDirectory.absolutePath() + "/var" ),
m_tempDirectory( QString::fromLocal8Bit( qgetenv( qPrintable( "TMPDIR" ) ) ) ),
m_dataDirectory( m_prefixDirectory.absolutePath() + "/share" ),
m_homeDirectory( QString::fromLocal8Bit( qgetenv( qPrintable( "HOME" ) ) ) ),
m_executableFile( m_binaryDirectory.absolutePath() + "/" + PROJECT_NAME_LOWER ),
m_configFile( m_configDirectory.absolutePath() + "/" + PROJECT_NAME_LOWER + ".conf" )
{ {
return( i ); if ( m_tempDirectory.isEmpty() || ( m_tempDirectory.path() == "." ) )
{
m_tempDirectory = _PATH_TMP;
} }
}
QDir Paths::prefixDirectory() const
{
return( m_prefixDirectory );
}
void Paths::setPrefixDirectory( const QString& prefixDirectory )
{
m_prefixDirectory = prefixDirectory;
}
QDir Paths::binaryDirectory() const
{
return( m_binaryDirectory );
}
void Paths::setBinaryDirectory( const QString& binaryDirectory )
{
m_binaryDirectory = binaryDirectory;
}
QDir Paths::configDirectory() const
{
return( m_configDirectory );
}
void Paths::setConfigDirectory( const QString& configDirectory )
{
m_configDirectory = configDirectory;
}
QDir Paths::cacheDirectory() const
{
return( m_cacheDirectory );
}
void Paths::setCacheDirectory( const QString& cacheDirectory )
{
m_cacheDirectory = cacheDirectory;
}
QDir Paths::tempDirectory() const
{
return( m_tempDirectory );
}
void Paths::setTempDirectory( const QString& tempDirectory )
{
m_tempDirectory = tempDirectory;
}
QDir Paths::dataDirectory() const
{
return( m_dataDirectory );
}
void Paths::setDataDirectory( const QString& dataDirectory )
{
m_dataDirectory = dataDirectory;
}
QFileInfo Paths::executableFile() const
{
return( m_executableFile );
}
void Paths::setExecutableFile( const QString& executableFile )
{
m_executableFile = executableFile;
}
QFileInfo Paths::configFile() const
{
return( m_configFile );
}
void Paths::setConfigFile( const QString& configFile )
{
m_configFile = configFile;
}
bool Paths::updatePaths()
{
char* path = nullptr;
int length, dirname_length;
length = wai_getExecutablePath( nullptr, 0, &dirname_length );
if ( length > 0 )
{
path = static_cast< char* >( malloc( static_cast< size_t >( length ) + 1 ) );
if ( !path )
{
return( false );
}
wai_getExecutablePath( path, length, &dirname_length );
path[length] = '\0';
}
else
{
return( false );
}
m_executableFile = QFile( path );
path[dirname_length] = '\0';
m_binaryDirectory = path;
free( path );
if ( m_binaryDirectory.absolutePath().endsWith( "/bin" ) )
{
m_prefixDirectory = m_binaryDirectory.absolutePath().remove( QRegExp( "/bin$" ) );
m_configDirectory = m_prefixDirectory.absolutePath() + "/etc";
m_cacheDirectory = m_prefixDirectory.absolutePath() + "/var";
m_dataDirectory = m_prefixDirectory.absolutePath() + "/share";
m_configFile = m_configDirectory.absolutePath() + "/" + PROJECT_NAME_LOWER + ".conf";
}
if ( m_prefixDirectory.absolutePath().startsWith( "/opt" ) ||
m_prefixDirectory.absolutePath().startsWith( "/usr" ) )
{
QString dataDirectory = QString::fromLocal8Bit( qgetenv( qPrintable( "XDG_DATA_HOME" ) ) );
if ( dataDirectory.isEmpty() )
{
dataDirectory = m_homeDirectory.absolutePath() + ".local/share/";
}
m_dataDirectory = dataDirectory + ORGANIZATION_NAME_LOWER + "/" + PROJECT_NAME_LOWER;
QString configDirectory = QString::fromLocal8Bit( qgetenv( qPrintable( "XDG_CONFIG_HOME" ) ) );
if ( configDirectory.isEmpty() )
{
configDirectory = m_homeDirectory.absolutePath() + ".config/";
}
m_configDirectory = configDirectory + ORGANIZATION_NAME_LOWER + "/" + PROJECT_NAME_LOWER;
QString cacheDirectory = QString::fromLocal8Bit( qgetenv( qPrintable( "XDG_CACHE_HOME" ) ) );
if ( cacheDirectory.isEmpty() )
{
cacheDirectory = m_homeDirectory.absolutePath() + ".cache/";
}
m_cacheDirectory = cacheDirectory + ORGANIZATION_NAME_LOWER + "/" + PROJECT_NAME_LOWER;
}
return( true );
} // Paths::updatePaths
bool Paths::makePaths()
{
bool status = true;
if ( !m_dataDirectory.mkpath( m_dataDirectory.absolutePath() ) ) { status = false; }
if ( !m_configDirectory.mkpath( m_configDirectory.absolutePath() ) ) { status = false; }
if ( !m_cacheDirectory.mkpath( m_cacheDirectory.absolutePath() ) ) { status = false; }
return( status );
}
QString Paths::findConfigFile( const QString& defaultConfigFile )
{
if ( QFileInfo( defaultConfigFile ).isReadable() )
{
return( defaultConfigFile );
}
auto fileName = QString::fromLocal8Bit( qgetenv( qPrintable( PROJECT_NAME_UPPER "_CONFIG" ) ) );
if ( QFileInfo( fileName ).isReadable() )
{
return( fileName );
}
if ( QFileInfo( m_configFile ).isReadable() )
{
return( m_configFile.absoluteFilePath() );
}
return( QString() );
}
} // namespace filesystem
} // namespace myx

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@ -1,13 +1,49 @@
#ifndef MYX_FILESYSTEM_PATHS_HPP_ #ifndef MYX_FILESYSTEM_PATHS_HPP_
#define MYX_FILESYSTEM_PATHS_HPP_ #define MYX_FILESYSTEM_PATHS_HPP_
#include <cstdint> #include <QString>
#include <QDir>
#include <QFileInfo>
namespace myx { namespace myx {
namespace filesystem { namespace filesystem {
int32_t init( int32_t i ); class Paths
{
QDir m_prefixDirectory;
QDir m_binaryDirectory;
QDir m_configDirectory;
QDir m_cacheDirectory;
QDir m_tempDirectory;
QDir m_dataDirectory;
QDir m_homeDirectory;
QFileInfo m_executableFile;
QFileInfo m_configFile;
public:
Paths();
QDir prefixDirectory() const;
void setPrefixDirectory( const QString& prefixDirectory );
QDir binaryDirectory() const;
void setBinaryDirectory( const QString& binaryDirectory );
QDir configDirectory() const;
void setConfigDirectory( const QString& configDirectory );
QDir cacheDirectory() const;
void setCacheDirectory( const QString& cacheDirectory );
QDir tempDirectory() const;
void setTempDirectory( const QString& tempDirectory );
QDir dataDirectory() const;
void setDataDirectory( const QString& dataDirectory );
QFileInfo executableFile() const;
void setExecutableFile( const QString& executableFile );
QFileInfo configFile() const;
void setConfigFile( const QString& configFile );
bool updatePaths();
bool makePaths();
QString findConfigFile( const QString& defaultConfigFile = "" );
}; // class Paths
} // namespace filesystem } // namespace filesystem

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@ -39,6 +39,6 @@ if(BUILD_SHARED_LIBS)
endif() endif()
install(FILES ${current_target_headers} install(FILES ${current_target_headers}
COMPONENT headers COMPONENT headers
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${current_target}) DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}/${current_target})
install(FILES ${CMAKE_BINARY_DIR}/${current_target}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig) install(FILES ${CMAKE_BINARY_DIR}/${current_target}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)

132
thirdparty/whereami/README.md vendored Normal file
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@ -0,0 +1,132 @@
# Where Am I?
A drop-in two files library to locate the current executable and the current
module on the file system.
Supported platforms:
- Windows
- Linux
- Mac
- iOS
- Android
- QNX Neutrino
- FreeBSD
- NetBSD
- DragonFly BSD
- SunOS
Just drop `whereami.h` and `whereami.c` into your build and get started. (see
also [customizing compilation])
[customizing compilation]: #customizing-compilation
--------------------------------------------------------------------------------
## Usage
- `wai_getExecutablePath()` returns the path of the enclosing executable
- `wai_getModulePath()` returns the path of the enclosing module
Example usage:
- first call `int length = wai_getExecutablePath(NULL, 0, NULL);` to retrieve
the length of the path
- allocate the destination buffer with `path = (char*)malloc(length + 1);`
- call `wai_getExecutablePath(path, length, &dirname_length)` again to retrieve
the path
- add a terminal `NUL` character with `path[length] = '\0';`
Here is the output of the example:
$ make -j -C _gnu-make
$ cp ./bin/mac-x86_64/library.dylib /tmp/
$ ./bin/mac-x86_64/executable --load-library=/tmp/library.dylib
executable path: /Users/gregory/Projects/whereami/bin/mac-x86_64/executable
dirname: /Users/gregory/Projects/whereami/bin/mac-x86_64
basename: executable
module path: /Users/gregory/Projects/whereami/bin/mac-x86_64/executable
dirname: /Users/gregory/Projects/whereami/bin/mac-x86_64
basename: executable
library loaded
executable path: /Users/gregory/Projects/whereami/bin/mac-x86_64/executable
dirname: /Users/gregory/Projects/whereami/bin/mac-x86_64
basename: executable
module path: /private/tmp/library.dylib
dirname: /private/tmp
basename: library.dylib
library unloaded
--------------------------------------------------------------------------------
## Customizing compilation
You can customize the library's behavior by defining the following macros:
- `WAI_FUNCSPEC`
- `WAI_PREFIX`
- `WAI_MALLOC`
- `WAI_REALLOC`
- `WAI_FREE`
## Compiling for Windows
There is a Visual Studio 2015 solution in the `_win-vs14/` folder.
## Compiling for Linux or Mac
There is a GNU Make 3.81 `MakeFile` in the `_gnu-make/` folder:
$ make -j -C _gnu-make/
## Compiling for Mac
See above if you want to compile from command line. Otherwise there is an Xcode
project located in the `_mac-xcode/` folder.
## Compiling for iOS
There is an Xcode project located in the `_ios-xcode/` folder.
If you prefer compiling from command line and deploying to a jailbroken device
through SSH, use:
$ make -j -C _gnu-make/ binsubdir=ios CC="$(xcrun --sdk iphoneos --find clang) -isysroot $(xcrun --sdk iphoneos --show-sdk-path) -arch armv7 -arch armv7s -arch arm64" postbuild="codesign -s 'iPhone Developer'"
## Compiling for Android
You will have to install the Android NDK, and point the `$NDK_ROOT` environment
variable to the NDK path: e.g. `export NDK_ROOT=/opt/android-ndk` (without a
trailing `/` character).
Next, the easy way is to make a standalone Android toolchain with the following
command:
$ $NDK_ROOT/build/tools/make_standalone_toolchain.py --arch=arm --install-dir=/tmp/android-toolchain
Now you can compile the example by running:
$ make -j -C _gnu-make/ libsuffix=.so binsubdir=android CC=/tmp/android-toolchain/bin/arm-linux-androideabi-gcc CXX=/tmp/android-toolchain/bin/arm-linux-androideabi-g++
Depending on whether you compile for an Android version that requires PIE
executables, add `CFLAGS='-fpie' CXXFLAGS='-fpie' LDFLAGS='-pie'` accordingly.
Loading page aligned library straight from APKs is supported. To test, use the
following:
$ zip -Z store app bin/android/library.so
$ zipalign -v -f -p 4 ./app.zip ./app.apk
Then copy `bin/android/executable` and `app.apk` to your Android device and
there launch:
$ ./executable --load-library=app.apk!/bin/android/library.so
--------------------------------------------------------------------------------
If you find this library useful and decide to use it in your own projects please
drop me a line [@gpakosz].
[@gpakosz]: https://twitter.com/gpakosz

679
thirdparty/whereami/whereami.c vendored Normal file
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@ -0,0 +1,679 @@
// (‑●‑●)> dual licensed under the WTFPL v2 and MIT licenses
// without any warranty.
// by Gregory Pakosz (@gpakosz)
// https://github.com/gpakosz/whereami
// in case you want to #include "whereami.c" in a larger compilation unit
#if !defined(WHEREAMI_H)
#include <whereami.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(WAI_MALLOC) || !defined(WAI_FREE) || !defined(WAI_REALLOC)
#include <stdlib.h>
#endif
#if !defined(WAI_MALLOC)
#define WAI_MALLOC(size) malloc(size)
#endif
#if !defined(WAI_FREE)
#define WAI_FREE(p) free(p)
#endif
#if !defined(WAI_REALLOC)
#define WAI_REALLOC(p, size) realloc(p, size)
#endif
#ifndef WAI_NOINLINE
#if defined(_MSC_VER)
#define WAI_NOINLINE __declspec(noinline)
#elif defined(__GNUC__)
#define WAI_NOINLINE __attribute__((noinline))
#else
#error unsupported compiler
#endif
#endif
#if defined(_MSC_VER)
#define WAI_RETURN_ADDRESS() _ReturnAddress()
#elif defined(__GNUC__)
#define WAI_RETURN_ADDRESS() __builtin_extract_return_addr(__builtin_return_address(0))
#else
#error unsupported compiler
#endif
#if defined(_WIN32)
#define WIN32_LEAN_AND_MEAN
#if defined(_MSC_VER)
#pragma warning(push, 3)
#endif
#include <windows.h>
#include <intrin.h>
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
static int WAI_PREFIX(getModulePath_)(HMODULE module, char* out, int capacity, int* dirname_length)
{
wchar_t buffer1[MAX_PATH];
wchar_t buffer2[MAX_PATH];
wchar_t* path = NULL;
int length = -1;
for (;;)
{
DWORD size;
int length_, length__;
size = GetModuleFileNameW(module, buffer1, sizeof(buffer1) / sizeof(buffer1[0]));
if (size == 0)
break;
else if (size == (DWORD)(sizeof(buffer1) / sizeof(buffer1[0])))
{
DWORD size_ = size;
do
{
wchar_t* path_;
path_ = (wchar_t*)WAI_REALLOC(path, sizeof(wchar_t) * size_ * 2);
if (!path_)
break;
size_ *= 2;
path = path_;
size = GetModuleFileNameW(module, path, size_);
}
while (size == size_);
if (size == size_)
break;
}
else
path = buffer1;
if (!_wfullpath(buffer2, path, MAX_PATH))
break;
length_ = (int)wcslen(buffer2);
length__ = WideCharToMultiByte(CP_UTF8, 0, buffer2, length_ , out, capacity, NULL, NULL);
if (length__ == 0)
length__ = WideCharToMultiByte(CP_UTF8, 0, buffer2, length_, NULL, 0, NULL, NULL);
if (length__ == 0)
break;
if (length__ <= capacity && dirname_length)
{
int i;
for (i = length__ - 1; i >= 0; --i)
{
if (out[i] == '\\')
{
*dirname_length = i;
break;
}
}
}
length = length__;
break;
}
if (path != buffer1)
WAI_FREE(path);
return length;
}
WAI_NOINLINE WAI_FUNCSPEC
int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length)
{
return WAI_PREFIX(getModulePath_)(NULL, out, capacity, dirname_length);
}
WAI_NOINLINE WAI_FUNCSPEC
int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length)
{
HMODULE module;
int length = -1;
#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable: 4054)
#endif
if (GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT, (LPCTSTR)WAI_RETURN_ADDRESS(), &module))
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
{
length = WAI_PREFIX(getModulePath_)(module, out, capacity, dirname_length);
}
return length;
}
#elif defined(__linux__) || defined(__CYGWIN__) || defined(__sun) || defined(WAI_USE_PROC_SELF_EXE)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(__linux__)
#include <linux/limits.h>
#else
#include <limits.h>
#endif
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif
#include <inttypes.h>
#if !defined(WAI_PROC_SELF_EXE)
#if defined(__sun)
#define WAI_PROC_SELF_EXE "/proc/self/path/a.out"
#else
#define WAI_PROC_SELF_EXE "/proc/self/exe"
#endif
#endif
WAI_FUNCSPEC
int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length)
{
char buffer[PATH_MAX];
char* resolved = NULL;
int length = -1;
for (;;)
{
resolved = realpath(WAI_PROC_SELF_EXE, buffer);
if (!resolved)
break;
length = (int)strlen(resolved);
if (length <= capacity)
{
memcpy(out, resolved, (size_t)length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
break;
}
return length;
}
#if !defined(WAI_PROC_SELF_MAPS_RETRY)
#define WAI_PROC_SELF_MAPS_RETRY 5
#endif
#if !defined(WAI_PROC_SELF_MAPS)
#if defined(__sun)
#define WAI_PROC_SELF_MAPS "/proc/self/map"
#else
#define WAI_PROC_SELF_MAPS "/proc/self/maps"
#endif
#endif
#if defined(__ANDROID__) || defined(ANDROID)
#include <fcntl.h>
#include <sys/mman.h>
#include <unistd.h>
#endif
WAI_NOINLINE WAI_FUNCSPEC
int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length)
{
int length = -1;
FILE* maps = NULL;
for (int r = 0; r < WAI_PROC_SELF_MAPS_RETRY; ++r)
{
maps = fopen(WAI_PROC_SELF_MAPS, "r");
if (!maps)
break;
for (;;)
{
char buffer[PATH_MAX < 1024 ? 1024 : PATH_MAX];
uint64_t low, high;
char perms[5];
uint64_t offset;
uint32_t major, minor;
char path[PATH_MAX];
uint32_t inode;
if (!fgets(buffer, sizeof(buffer), maps))
break;
if (sscanf(buffer, "%" PRIx64 "-%" PRIx64 " %s %" PRIx64 " %x:%x %u %s\n", &low, &high, perms, &offset, &major, &minor, &inode, path) == 8)
{
uint64_t addr = (uintptr_t)WAI_RETURN_ADDRESS();
if (low <= addr && addr <= high)
{
char* resolved;
resolved = realpath(path, buffer);
if (!resolved)
break;
length = (int)strlen(resolved);
#if defined(__ANDROID__) || defined(ANDROID)
if (length > 4
&&buffer[length - 1] == 'k'
&&buffer[length - 2] == 'p'
&&buffer[length - 3] == 'a'
&&buffer[length - 4] == '.')
{
int fd = open(path, O_RDONLY);
char* begin;
char* p;
begin = (char*)mmap(0, offset, PROT_READ, MAP_SHARED, fd, 0);
p = begin + offset;
while (p >= begin) // scan backwards
{
if (*((uint32_t*)p) == 0x04034b50UL) // local file header found
{
uint16_t length_ = *((uint16_t*)(p + 26));
if (length + 2 + length_ < (int)sizeof(buffer))
{
memcpy(&buffer[length], "!/", 2);
memcpy(&buffer[length + 2], p + 30, length_);
length += 2 + length_;
}
break;
}
p -= 4;
}
munmap(begin, offset);
close(fd);
}
#endif
if (length <= capacity)
{
memcpy(out, resolved, (size_t)length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
break;
}
}
}
fclose(maps);
maps = NULL;
if (length != -1)
break;
}
if (maps)
fclose(maps);
return length;
}
#elif defined(__APPLE__)
#define _DARWIN_BETTER_REALPATH
#include <mach-o/dyld.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
WAI_FUNCSPEC
int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length)
{
char buffer1[PATH_MAX];
char buffer2[PATH_MAX];
char* path = buffer1;
char* resolved = NULL;
int length = -1;
for (;;)
{
uint32_t size = (uint32_t)sizeof(buffer1);
if (_NSGetExecutablePath(path, &size) == -1)
{
path = (char*)WAI_MALLOC(size);
if (!_NSGetExecutablePath(path, &size))
break;
}
resolved = realpath(path, buffer2);
if (!resolved)
break;
length = (int)strlen(resolved);
if (length <= capacity)
{
memcpy(out, resolved, length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
break;
}
if (path != buffer1)
WAI_FREE(path);
return length;
}
WAI_NOINLINE WAI_FUNCSPEC
int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length)
{
char buffer[PATH_MAX];
char* resolved = NULL;
int length = -1;
for(;;)
{
Dl_info info;
if (dladdr(WAI_RETURN_ADDRESS(), &info))
{
resolved = realpath(info.dli_fname, buffer);
if (!resolved)
break;
length = (int)strlen(resolved);
if (length <= capacity)
{
memcpy(out, resolved, length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
}
break;
}
return length;
}
#elif defined(__QNXNTO__)
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#if !defined(WAI_PROC_SELF_EXE)
#define WAI_PROC_SELF_EXE "/proc/self/exefile"
#endif
WAI_FUNCSPEC
int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length)
{
char buffer1[PATH_MAX];
char buffer2[PATH_MAX];
char* resolved = NULL;
FILE* self_exe = NULL;
int length = -1;
for (;;)
{
self_exe = fopen(WAI_PROC_SELF_EXE, "r");
if (!self_exe)
break;
if (!fgets(buffer1, sizeof(buffer1), self_exe))
break;
resolved = realpath(buffer1, buffer2);
if (!resolved)
break;
length = (int)strlen(resolved);
if (length <= capacity)
{
memcpy(out, resolved, length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
break;
}
fclose(self_exe);
return length;
}
WAI_FUNCSPEC
int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length)
{
char buffer[PATH_MAX];
char* resolved = NULL;
int length = -1;
for(;;)
{
Dl_info info;
if (dladdr(WAI_RETURN_ADDRESS(), &info))
{
resolved = realpath(info.dli_fname, buffer);
if (!resolved)
break;
length = (int)strlen(resolved);
if (length <= capacity)
{
memcpy(out, resolved, length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
}
break;
}
return length;
}
#elif defined(__DragonFly__) || defined(__FreeBSD__) || \
defined(__FreeBSD_kernel__) || defined(__NetBSD__)
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <dlfcn.h>
WAI_FUNCSPEC
int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length)
{
char buffer1[PATH_MAX];
char buffer2[PATH_MAX];
char* path = buffer1;
char* resolved = NULL;
int length = -1;
for (;;)
{
#if defined(__NetBSD__)
int mib[4] = { CTL_KERN, KERN_PROC_ARGS, -1, KERN_PROC_PATHNAME };
#else
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
#endif
size_t size = sizeof(buffer1);
if (sysctl(mib, (u_int)(sizeof(mib) / sizeof(mib[0])), path, &size, NULL, 0) != 0)
break;
resolved = realpath(path, buffer2);
if (!resolved)
break;
length = (int)strlen(resolved);
if (length <= capacity)
{
memcpy(out, resolved, length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
break;
}
if (path != buffer1)
WAI_FREE(path);
return length;
}
WAI_NOINLINE WAI_FUNCSPEC
int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length)
{
char buffer[PATH_MAX];
char* resolved = NULL;
int length = -1;
for(;;)
{
Dl_info info;
if (dladdr(WAI_RETURN_ADDRESS(), &info))
{
resolved = realpath(info.dli_fname, buffer);
if (!resolved)
break;
length = (int)strlen(resolved);
if (length <= capacity)
{
memcpy(out, resolved, length);
if (dirname_length)
{
int i;
for (i = length - 1; i >= 0; --i)
{
if (out[i] == '/')
{
*dirname_length = i;
break;
}
}
}
}
}
break;
}
return length;
}
#else
#error unsupported platform
#endif
#ifdef __cplusplus
}
#endif

67
thirdparty/whereami/whereami.h vendored Normal file
View File

@ -0,0 +1,67 @@
// (‑●‑●)> dual licensed under the WTFPL v2 and MIT licenses
// without any warranty.
// by Gregory Pakosz (@gpakosz)
// https://github.com/gpakosz/whereami
#ifndef WHEREAMI_H
#define WHEREAMI_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef WAI_FUNCSPEC
#define WAI_FUNCSPEC
#endif
#ifndef WAI_PREFIX
#define WAI_PREFIX(function) wai_##function
#endif
/**
* Returns the path to the current executable.
*
* Usage:
* - first call `int length = wai_getExecutablePath(NULL, 0, NULL);` to
* retrieve the length of the path
* - allocate the destination buffer with `path = (char*)malloc(length + 1);`
* - call `wai_getExecutablePath(path, length, NULL)` again to retrieve the
* path
* - add a terminal NUL character with `path[length] = '\0';`
*
* @param out destination buffer, optional
* @param capacity destination buffer capacity
* @param dirname_length optional recipient for the length of the dirname part
* of the path.
*
* @return the length of the executable path on success (without a terminal NUL
* character), otherwise `-1`
*/
WAI_FUNCSPEC
int WAI_PREFIX(getExecutablePath)(char* out, int capacity, int* dirname_length);
/**
* Returns the path to the current module
*
* Usage:
* - first call `int length = wai_getModulePath(NULL, 0, NULL);` to retrieve
* the length of the path
* - allocate the destination buffer with `path = (char*)malloc(length + 1);`
* - call `wai_getModulePath(path, length, NULL)` again to retrieve the path
* - add a terminal NUL character with `path[length] = '\0';`
*
* @param out destination buffer, optional
* @param capacity destination buffer capacity
* @param dirname_length optional recipient for the length of the dirname part
* of the path.
*
* @return the length of the module path on success (without a terminal NUL
* character), otherwise `-1`
*/
WAI_FUNCSPEC
int WAI_PREFIX(getModulePath)(char* out, int capacity, int* dirname_length);
#ifdef __cplusplus
}
#endif
#endif // #ifndef WHEREAMI_H