118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/******************************************************************************
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Copyright (c) 2013 by Hugh Bailey <obs.jim@gmail.com>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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******************************************************************************/
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <dlfcn.h>
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#include <unistd.h>
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#include <time.h>
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#include "dstr.h"
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#include "platform.h"
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void *os_dlopen(const char *path)
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{
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struct dstr dylib_name;
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dstr_init_copy(&dylib_name, path);
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if(!dstr_find(&dylib_name, ".so"))
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dstr_cat(&dylib_name, ".so");
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void *res = dlopen(dylib_name.array, RTLD_LAZY);
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if(!res)
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blog(LOG_ERROR, "os_dlopen(%s->%s): %s\n",
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path, dylib_name.array, dlerror());
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dstr_free(&dylib_name);
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return res;
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}
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void *os_dlsym(void *module, const char *func)
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{
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return dlsym(module, func);
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}
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void os_dlclose(void *module)
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{
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dlclose(module);
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}
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void os_sleepto_ns(uint64_t time_target)
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{
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uint64_t current = os_gettime_ns();
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if(time_target < current)
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return;
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time_target -= current;
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struct timespec req,
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remain;
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memset(&req, 0, sizeof(req));
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memset(&remain, 0, sizeof(remain));
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req.tv_sec = time_target/1000000000;
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req.tv_nsec = time_target%1000000000;
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while(nanosleep(&req, &remain))
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{
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req = remain;
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memset(&remain, 0, sizeof(remain));
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}
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}
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void os_sleep_ms(uint32_t duration)
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{
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usleep(duration*1000);
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}
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uint64_t os_gettime_ns(void)
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{
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struct timespec tp;
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clock_gettime(CLOCK_REALTIME, &tp);
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return tp.tv_nsec;
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}
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uint64_t os_gettime_ms(void)
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{
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return os_gettime_ns()/1000000;
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}
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/* should return $HOME/ */
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char *os_get_home_path(void)
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{
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char *path_ptr = getenv("HOME");
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if (path_ptr == NULL)
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bcrash("Could not get $HOME\n");
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char *path = bmalloc(strlen(path_ptr)+1);
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strcpy(path, path_ptr);
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return path;
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}
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int os_mkdir(const char *path)
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{
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int errorcode = mkdir(path, S_IRWXU);
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if (errorcode == 0)
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return MKDIR_SUCCESS;
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return (errno == EEXIST) ? MKDIR_EXISTS : MKDIR_ERROR;
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}
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