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LibPthread: Start working on a POSIX threading library

This patch adds pthread_create() and pthread_exit(), which currently
simply wrap our existing create_thread() and exit_thread() syscalls.

LibThread is also ported to using LibPthread.
This commit is contained in:
Andreas Kling 2019-11-13 21:49:24 +01:00
parent 4fe2ee0221
commit 69ca9cfd78
16 changed files with 89 additions and 31 deletions

View file

@ -1,75 +0,0 @@
#pragma once
#include <sched.h>
#include <sys/cdefs.h>
__BEGIN_DECLS
typedef void* pthread_t;
typedef void* pthread_key_t;
typedef void* pthread_once_t;
typedef void* pthread_mutex_t;
typedef void* pthread_attr_t;
typedef void* pthread_mutexattr_t;
typedef void* pthread_cond_t;
typedef void* pthread_spinlock_t;
typedef void* pthread_condattr_t;
int pthread_create(pthread_t, pthread_attr_t*, void* (*)(void*), void*);
void pthread_exit(void*);
int pthread_kill(pthread_t, int);
void pthread_cleanup_push(void (*)(void*), void*);
void pthread_cleanup_pop(int);
int pthread_join(pthread_t, void**);
int pthread_mutex_lock(pthread_mutex_t*);
int pthread_mutex_trylock(pthread_mutex_t* mutex);
int pthread_mutex_unlock(pthread_mutex_t*);
int pthread_mutex_init(pthread_mutex_t*, const pthread_mutexattr_t*);
int pthread_mutex_destroy(pthread_mutex_t*);
int pthread_attr_init(pthread_attr_t*);
int pthread_attr_destroy(pthread_attr_t*);
int pthread_once(pthread_once_t*, void (*)(void));
#define PTHREAD_ONCE_INIT 0
pthread_once_t once_control = PTHREAD_ONCE_INIT;
void* pthread_getspecific(pthread_key_t key);
int pthread_setspecific(pthread_key_t key, const void* value);
#define PTHREAD_MUTEX_NORMAL 0
#define PTHREAD_MUTEX_RECURSIVE 1
#define PTHREAD_MUTEX_INITIALIZER 0
#define PTHREAD_COND_INITIALIZER 0
int pthread_key_create(pthread_key_t* key, void (*destructor)(void*));
int pthread_key_delete(pthread_key_t key);
int pthread_cond_broadcast(pthread_cond_t*);
int pthread_cond_init(pthread_cond_t*, const pthread_condattr_t*);
int pthread_cond_signal(pthread_cond_t*);
int pthread_cond_wait(pthread_cond_t*, pthread_mutex_t*);
int pthread_condattr_destroy(pthread_condattr_t*);
int pthread_cancel(pthread_t);
void pthread_cleanup_push(void (*)(void*), void*);
void pthread_cleanup_pop(int);
int pthread_cond_broadcast(pthread_cond_t*);
int pthread_cond_destroy(pthread_cond_t*);
int pthread_cond_timedwait(pthread_cond_t*, pthread_mutex_t*, const struct timespec*);
int pthread_cond_wait(pthread_cond_t*, pthread_mutex_t*);
int pthread_condattr_destroy(pthread_condattr_t*);
void pthread_testcancel(void);
int pthread_spin_destroy(pthread_spinlock_t*);
int pthread_spin_init(pthread_spinlock_t*, int);
int pthread_spin_lock(pthread_spinlock_t*);
int pthread_spin_trylock(pthread_spinlock_t*);
int pthread_spin_unlock(pthread_spinlock_t*);
int pthread_cond_destroy(pthread_cond_t*);
pthread_t pthread_self(void);
int pthread_detach(pthread_t);
int pthread_equal(pthread_t, pthread_t);
void pthread_exit(void*);
int pthread_mutexattr_init(pthread_mutexattr_t*);
int pthread_mutexattr_settype(pthread_mutexattr_t*, int);
int pthread_mutexattr_destroy(pthread_mutexattr_t*);
__END_DECLS

View file

@ -1,5 +1,5 @@
#include <AK/String.h>
#include <AK/ScopedValueRollback.h>
#include <AK/String.h>
#include <AK/Vector.h>
#include <Kernel/Syscall.h>
#include <assert.h>
@ -540,13 +540,13 @@ char* getlogin()
return nullptr;
}
int create_thread(int (*entry)(void*), void* argument)
int create_thread(void *(*entry)(void*), void* argument)
{
int rc = syscall(SC_create_thread, entry, argument);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
void exit_thread(int code)
void exit_thread(void* code)
{
syscall(SC_exit_thread, code);
ASSERT_NOT_REACHED();
@ -633,5 +633,4 @@ int get_process_name(char* buffer, int buffer_size)
int rc = syscall(SC_get_process_name, buffer, buffer_size);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
}

View file

@ -36,8 +36,8 @@ void sysbeep();
int systrace(pid_t);
int gettid();
int donate(int tid);
int create_thread(int (*)(void*), void*);
void exit_thread(int);
int create_thread(void *(*)(void*), void* argument);
void exit_thread(void*);
int create_shared_buffer(int, void** buffer);
int share_buffer_with(int, pid_t peer_pid);
int share_buffer_globally(int);