mirror of
https://github.com/kevinbentley/Descent3.git
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90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
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#ifdef DECLARE_POINTERS
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#define FEXTERN
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#else
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#define FEXTERN extern
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#endif
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#include <pthread.h>
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#define pthread_create sopthread_create
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#define pthread_exit sopthread_exit
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#define pthread_detach sopthread_detach
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#define pthread_self sopthread_self
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typedef int (*pthread_create_fp)(pthread_t *__threadx,__const pthread_attr_t *__attr,void *(*__start_routine) (void *),void *__arg);
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FEXTERN pthread_create_fp sopthread_create;
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typedef void (*pthread_exit_fp)(void *__retval);
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FEXTERN pthread_exit_fp sopthread_exit;
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typedef int (*pthread_detach_fp)(pthread_t __th);
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FEXTERN pthread_detach_fp sopthread_detach;
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typedef pthread_t (*pthread_self_fp)(void);
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FEXTERN pthread_self_fp sopthread_self;
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#ifndef DECLARE_POINTERS
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bool LoadPThreadLib(bool load = true);
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#else
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#include <dlfcn.h>
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#include <stdlib.h>
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#include <stdio.h>
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void LoadPThreadLibSetNULL(void)
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{
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sopthread_create = NULL;
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sopthread_exit = NULL;
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sopthread_detach = NULL;
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sopthread_self = NULL;
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}
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bool LoadPThreadLib(bool load)
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{
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#define PTHREADLIB "libpthread.so"
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static void *handle = NULL;
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if(!load)
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{
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LoadPThreadLibSetNULL();
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if(handle)
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{
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dlclose(handle);
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handle = NULL;
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return true;
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}
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fprintf(stderr,"Library Unload Failed: %s\n",PTHREADLIB);
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return false;
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}
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if(handle)
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return true;
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// Load the library
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handle = dlopen(PTHREADLIB,RTLD_LAZY|RTLD_GLOBAL);
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if(!handle)
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{
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fprintf(stderr,"Library Load Failed: %s\n",PTHREADLIB);
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return false;
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}
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sopthread_create = (pthread_create_fp)dlsym(handle,"pthread_create");
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if(!sopthread_create) goto load_error;
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sopthread_exit = (pthread_exit_fp)dlsym(handle,"pthread_exit");
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if(!sopthread_exit) goto load_error;
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sopthread_detach = (pthread_detach_fp)dlsym(handle,"pthread_detach");
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if(!sopthread_detach) goto load_error;
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sopthread_self = (pthread_self_fp)dlsym(handle,"pthread_self");
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if(!sopthread_self) goto load_error;
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return true;
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load_error:
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LoadPThreadLibSetNULL();
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fprintf(stderr,"Library Symbol Resolve Error: %s\n",PTHREADLIB);
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dlclose(handle);
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handle = NULL;
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return false;
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}
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#endif
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