466 lines
9.9 KiB
ReStructuredText
466 lines
9.9 KiB
ReStructuredText
Platform Helpers
|
|
================
|
|
|
|
These functions/structures/types are used to perform actions that
|
|
typically don't have shared functions across different operating systems
|
|
and platforms.
|
|
|
|
.. code:: cpp
|
|
|
|
#include <util/platform.h>
|
|
|
|
|
|
File Functions
|
|
--------------
|
|
|
|
.. function:: FILE *os_wfopen(const wchar_t *path, const char *mode)
|
|
|
|
Opens a file with a wide string path.
|
|
|
|
----------------------
|
|
|
|
.. function:: FILE *os_fopen(const char *path, const char *mode)
|
|
|
|
Opens a file with a UTF8 string path.
|
|
|
|
----------------------
|
|
|
|
.. function:: int64_t os_fgetsize(FILE *file)
|
|
|
|
Returns a file's size.
|
|
|
|
----------------------
|
|
|
|
.. function:: int os_stat(const char *file, struct stat *st)
|
|
|
|
Equivalent to the posix *stat* function.
|
|
|
|
----------------------
|
|
|
|
.. function:: int os_fseeki64(FILE *file, int64_t offset, int origin)
|
|
|
|
Equivalent to fseek.
|
|
|
|
----------------------
|
|
|
|
.. function:: int64_t os_ftelli64(FILE *file)
|
|
|
|
Gets the current file position.
|
|
|
|
----------------------
|
|
|
|
.. function:: size_t os_fread_utf8(FILE *file, char **pstr)
|
|
|
|
Reads a UTF8 encoded file and allocates a pointer to the UTF8 string.
|
|
|
|
----------------------
|
|
|
|
.. function:: char *os_quick_read_utf8_file(const char *path)
|
|
|
|
Reads a UTF8 encoded file and returns an allocated pointer to the
|
|
string.
|
|
|
|
----------------------
|
|
|
|
.. function:: bool os_quick_write_utf8_file(const char *path, const char *str, size_t len, bool marker)
|
|
|
|
Writes a UTF8 encoded file.
|
|
|
|
----------------------
|
|
|
|
.. function:: bool os_quick_write_utf8_file_safe(const char *path, const char *str, size_t len, bool marker, const char *temp_ext, const char *backup_ext)
|
|
|
|
Writes a UTF8 encoded file with overwrite corruption prevention.
|
|
|
|
----------------------
|
|
|
|
.. function:: int64_t os_get_file_size(const char *path)
|
|
|
|
Gets a file's size.
|
|
|
|
----------------------
|
|
|
|
.. function:: int64_t os_get_free_space(const char *path)
|
|
|
|
Gets free space of a specific file path.
|
|
|
|
---------------------
|
|
|
|
|
|
String Conversion Functions
|
|
---------------------------
|
|
|
|
.. function:: size_t os_utf8_to_wcs(const char *str, size_t len, wchar_t *dst, size_t dst_size)
|
|
|
|
Converts a UTF8 string to a wide string.
|
|
|
|
----------------------
|
|
|
|
.. function:: size_t os_wcs_to_utf8(const wchar_t *str, size_t len, char *dst, size_t dst_size)
|
|
|
|
Converts a wide string to a UTF8 string.
|
|
|
|
----------------------
|
|
|
|
.. function:: size_t os_utf8_to_wcs_ptr(const char *str, size_t len, wchar_t **pstr)
|
|
|
|
Gets an bmalloc-allocated wide string converted from a UTF8 string.
|
|
|
|
----------------------
|
|
|
|
.. function:: size_t os_wcs_to_utf8_ptr(const wchar_t *str, size_t len, char **pstr)
|
|
|
|
Gets an bmalloc-allocated UTF8 string converted from a wide string.
|
|
|
|
---------------------
|
|
|
|
|
|
Number/String Conversion Functions
|
|
----------------------------------
|
|
|
|
.. function:: double os_strtod(const char *str)
|
|
|
|
Converts a string to a double.
|
|
|
|
----------------------
|
|
|
|
.. function:: int os_dtostr(double value, char *dst, size_t size)
|
|
|
|
Converts a double to a string.
|
|
|
|
---------------------
|
|
|
|
|
|
Dynamic Link Library Functions
|
|
------------------------------
|
|
|
|
These functions are roughly equivalent to dlopen/dlsym/dlclose.
|
|
|
|
.. function:: void *os_dlopen(const char *path)
|
|
|
|
Opens a dynamic library.
|
|
|
|
----------------------
|
|
|
|
.. function:: void *os_dlsym(void *module, const char *func)
|
|
|
|
Returns a symbol from a dynamic library.
|
|
|
|
----------------------
|
|
|
|
.. function:: void os_dlclose(void *module)
|
|
|
|
Closes a dynamic library.
|
|
|
|
---------------------
|
|
|
|
|
|
CPU Usage Functions
|
|
-------------------
|
|
|
|
.. function:: os_cpu_usage_info_t *os_cpu_usage_info_start(void)
|
|
|
|
Creates a CPU usage information object.
|
|
|
|
----------------------
|
|
|
|
.. function:: double os_cpu_usage_info_query(os_cpu_usage_info_t *info)
|
|
|
|
Queries the current CPU usage.
|
|
|
|
----------------------
|
|
|
|
.. function:: void os_cpu_usage_info_destroy(os_cpu_usage_info_t *info)
|
|
|
|
Destroys a CPU usage information object.
|
|
|
|
---------------------
|
|
|
|
|
|
Sleep/Time Functions
|
|
--------------------
|
|
|
|
.. function:: bool os_sleepto_ns(uint64_t time_target)
|
|
|
|
Sleeps to a specific time with high precision, in nanoseconds.
|
|
|
|
---------------------
|
|
|
|
.. function:: void os_sleep_ms(uint32_t duration)
|
|
|
|
Sleeps for a specific number of milliseconds.
|
|
|
|
---------------------
|
|
|
|
.. function:: uint64_t os_gettime_ns(void)
|
|
|
|
Gets the current high-precision system time, in nanoseconds.
|
|
|
|
---------------------
|
|
|
|
Other Path/File Functions
|
|
-------------------------
|
|
|
|
.. function:: int os_get_config_path(char *dst, size_t size, const char *name)
|
|
char *os_get_config_path_ptr(const char *name)
|
|
|
|
Gets the user-specific application configuration data path.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_get_program_data_path(char *dst, size_t size, const char *name)
|
|
char *os_get_program_data_path_ptr(const char *name)
|
|
|
|
Gets the application configuration data path.
|
|
|
|
---------------------
|
|
|
|
.. function:: bool os_file_exists(const char *path)
|
|
|
|
Returns true if a file/directory exists, false otherwise.
|
|
|
|
---------------------
|
|
|
|
.. function:: size_t os_get_abs_path(const char *path, char *abspath, size_t size)
|
|
char *os_get_abs_path_ptr(const char *path)
|
|
|
|
Converts a relative path to an absolute path.
|
|
|
|
---------------------
|
|
|
|
.. function:: const char *os_get_path_extension(const char *path)
|
|
|
|
Returns the extension portion of a path string.
|
|
|
|
---------------------
|
|
|
|
.. type:: typedef struct os_dir os_dir_t
|
|
|
|
A directory object.
|
|
|
|
.. type:: struct os_dirent
|
|
|
|
A directory entry record.
|
|
|
|
.. member:: char os_dirent.d_name[256]
|
|
|
|
The directory entry name.
|
|
|
|
.. member:: bool os_dirent.directory
|
|
|
|
*true* if the entry is a directory.
|
|
|
|
---------------------
|
|
|
|
.. function:: os_dir_t *os_opendir(const char *path)
|
|
|
|
Opens a directory object to enumerate files within the directory.
|
|
|
|
---------------------
|
|
|
|
.. function:: struct os_dirent *os_readdir(os_dir_t *dir)
|
|
|
|
Returns the linked list of directory entries.
|
|
|
|
---------------------
|
|
|
|
.. function:: void os_closedir(os_dir_t *dir)
|
|
|
|
Closes a directory object.
|
|
|
|
---------------------
|
|
|
|
.. type:: struct os_globent
|
|
|
|
A glob entry.
|
|
|
|
.. member:: char *os_globent.path
|
|
|
|
The full path to the glob entry.
|
|
|
|
.. member:: bool os_globent.directory
|
|
|
|
*true* if the glob entry is a directory, *false* otherwise.
|
|
|
|
.. type:: struct os_glob_info
|
|
|
|
A glob object.
|
|
|
|
.. member:: size_t os_glob_info.gl_pathc
|
|
|
|
Number of glob entries.
|
|
|
|
.. member:: struct os_globent *os_glob_info.gl_pathv
|
|
|
|
Array of glob entries.
|
|
|
|
.. type:: typedef struct os_glob_info os_glob_t
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_glob(const char *pattern, int flags, os_glob_t **pglob)
|
|
|
|
Enumerates files based upon a glob string.
|
|
|
|
---------------------
|
|
|
|
.. function:: void os_globfree(os_glob_t *pglob)
|
|
|
|
Frees a glob object.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_unlink(const char *path)
|
|
|
|
Deletes a file.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_rmdir(const char *path)
|
|
|
|
Deletes a directory.
|
|
|
|
---------------------
|
|
|
|
.. function:: char *os_getcwd(char *path, size_t size)
|
|
|
|
Returns a new bmalloc-allocated path to the current working
|
|
directory.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_chdir(const char *path)
|
|
|
|
Changes the current working directory.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_mkdir(const char *path)
|
|
|
|
Creates a directory.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_mkdirs(const char *path)
|
|
|
|
Creates a full directory path if it doesn't exist.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_rename(const char *old_path, const char *new_path)
|
|
|
|
Renames a file.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_copyfile(const char *file_in, const char *file_out)
|
|
|
|
Copies a file.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_safe_replace(const char *target_path, const char *from_path, const char *backup_path)
|
|
|
|
Safely replaces a file.
|
|
|
|
---------------------
|
|
|
|
.. function:: char *os_generate_formatted_filename(const char *extension, bool space, const char *format)
|
|
|
|
Returns a new bmalloc-allocated filename generated from specific
|
|
formatting.
|
|
|
|
---------------------
|
|
|
|
|
|
Sleep-Inhibition Functions
|
|
--------------------------
|
|
|
|
These functions/types are used to inhibit the computer from going to
|
|
sleep.
|
|
|
|
.. type:: struct os_inhibit_info
|
|
.. type:: typedef struct os_inhibit_info os_inhibit_t
|
|
|
|
---------------------
|
|
|
|
.. function:: os_inhibit_t *os_inhibit_sleep_create(const char *reason)
|
|
|
|
Creates a sleep inhibition object.
|
|
|
|
---------------------
|
|
|
|
.. function:: bool os_inhibit_sleep_set_active(os_inhibit_t *info, bool active)
|
|
|
|
Activates/deactivates a sleep inhibition object.
|
|
|
|
---------------------
|
|
|
|
.. function:: void os_inhibit_sleep_destroy(os_inhibit_t *info)
|
|
|
|
Destroys a sleep inhibition object. If the sleep inhibition object
|
|
was active, it will be deactivated.
|
|
|
|
---------------------
|
|
|
|
|
|
Other Functions
|
|
---------------
|
|
|
|
.. function:: void os_breakpoint(void)
|
|
|
|
Triggers a debugger breakpoint (or crashes the program if no debugger
|
|
present).
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_get_physical_cores(void)
|
|
|
|
Returns the number of physical cores available.
|
|
|
|
---------------------
|
|
|
|
.. function:: int os_get_logical_cores(void)
|
|
|
|
Returns the number of logical cores available.
|
|
|
|
---------------------
|
|
|
|
.. function:: uint64_t os_get_sys_free_size(void)
|
|
|
|
Returns the amount of memory available.
|
|
|
|
---------------------
|
|
|
|
.. type:: struct os_proc_memory_usage
|
|
|
|
Memory usage structure.
|
|
|
|
.. member:: uint64_t os_proc_memory_usage.resident_size
|
|
|
|
Resident size.
|
|
|
|
.. member:: uint64_t os_proc_memory_usage.virtual_size
|
|
|
|
Virtual size.
|
|
|
|
.. type:: typedef struct os_proc_memory_usage os_proc_memory_usage_t
|
|
|
|
---------------------
|
|
|
|
.. function:: bool os_get_proc_memory_usage(os_proc_memory_usage_t *usage)
|
|
|
|
Gets memory usage of the current process.
|
|
|
|
---------------------
|
|
|
|
.. function:: uint64_t os_get_proc_resident_size(void)
|
|
|
|
Returns the resident memory size of the current process.
|
|
|
|
---------------------
|
|
|
|
.. function:: uint64_t os_get_proc_virtual_size(void)
|
|
|
|
Returns the virtual memory size of the current process.
|