You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
2.0 KiB
62 lines
2.0 KiB
/*
|
|
* The UCW Library -- Threading Helpers
|
|
*
|
|
* (c) 2006--2012 Martin Mares <mj@ucw.cz>
|
|
*
|
|
* This software may be freely distributed and used according to the terms
|
|
* of the GNU Lesser General Public License.
|
|
*/
|
|
|
|
#ifndef _UCW_THREADS_H
|
|
#define _UCW_THREADS_H
|
|
|
|
#include <ucw/sighandler.h>
|
|
|
|
/* This structure holds per-thread data */
|
|
|
|
struct ucwlib_context {
|
|
int _thread_id; // Thread ID (either kernel tid or a counter, use ucwlib_thread_id())
|
|
int temp_counter; // Counter for fb-temp.c
|
|
struct asio_queue *io_queue; // Async I/O queue for fb-direct.c
|
|
ucw_sighandler_t *signal_handlers; // Signal handlers for sighandler.c
|
|
struct main_context *main_context; // Current context for mainloop.c
|
|
struct cf_context *cf_context; // Current context for configuration parser
|
|
// Resources and transactions:
|
|
struct respool *current_respool; // Current resource pool
|
|
struct mempool *trans_pool; // Transaction mempool
|
|
struct trans *current_trans; // Currently open transaction
|
|
};
|
|
|
|
#ifdef CONFIG_UCW_THREADS
|
|
|
|
#ifdef CONFIG_UCW_TLS
|
|
extern __thread struct ucwlib_context ucwlib_context;
|
|
static inline struct ucwlib_context *ucwlib_thread_context(void) { return &ucwlib_context; }
|
|
int ucwlib_thread_id(struct ucwlib_context *c);
|
|
#else
|
|
struct ucwlib_context *ucwlib_thread_context(void);
|
|
static inline int ucwlib_thread_id(struct ucwlib_context *c) { return c->_thread_id; }
|
|
#endif
|
|
|
|
/* Global lock used for initialization, cleanup and other not so frequently accessed global state */
|
|
|
|
void ucwlib_lock(void);
|
|
void ucwlib_unlock(void);
|
|
|
|
extern uint ucwlib_thread_stack_size;
|
|
|
|
#else
|
|
|
|
/* We have no threads, let's simulate the context and locking */
|
|
|
|
extern struct ucwlib_context ucwlib_default_context;
|
|
static inline struct ucwlib_context *ucwlib_thread_context(void) { return &ucwlib_default_context; }
|
|
|
|
static inline int ucwlib_thread_id(struct ucwlib_context *c UNUSED) { return 0; }
|
|
|
|
static inline void ucwlib_lock(void) { }
|
|
static inline void ucwlib_unlock(void) { }
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|