acl/lib_fiber/c/include/fiber/fiber_base.h
2018-03-05 11:05:05 +08:00

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#ifndef FIBER_BASE_INCLUDE_H
#define FIBER_BASE_INCLUDE_H
#include "fiber_define.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* set flag if the system API should be hooked, default value is 1 internal
* @param onoff {int} if need to hook the system API
*/
FIBER_API void acl_fiber_hook_api(int onoff);
/**
* create and start one fiber
* @param fn {void (*)(ACL_FIBER*, void*)} the callback of fiber running
* @param arg {void*} the second parameter of the callback fn
* @param size {size_t} the virual memory size of the fiber created
* @return {ACL_FIBER*}
*/
FIBER_API ACL_FIBER* acl_fiber_create(void (*fn)(ACL_FIBER*, void*),
void* arg, size_t size);
/**
* get the fibers count in deading status
* @retur {int}
*/
FIBER_API int acl_fiber_ndead(void);
/**
* create one fiber in background for freeing the dead fibers, specify the
* maximum fibers in every recyling process
* @param max {size_t} the maximum fibers to freed in every recyling process
*/
FIBER_API void acl_fiber_check_timer(size_t max);
/**
* get the current running fiber
* @retur {ACL_FIBER*} if no running fiber NULL will be returned
*/
FIBER_API ACL_FIBER* acl_fiber_running(void);
/**
* get the fiber ID of the specified fiber
* @param fiber {const ACL_FIBER*} the specified fiber object
* @return {unsigned int} return the fiber ID
*/
FIBER_API unsigned int acl_fiber_id(const ACL_FIBER* fiber);
/**
* get the current running fiber's ID
* @return {unsigned int} the current fiber's ID
*/
FIBER_API unsigned int acl_fiber_self(void);
/**
* set the error number to the specified fiber object
* @param fiber {ACL_FIBER*} the specified fiber, if NULL the current running
* fiber will be used
* @param errnum {int} the error number
*/
FIBER_API void acl_fiber_set_errno(ACL_FIBER* fiber, int errnum);
/**
* get the error number of assosiated fiber
* @param fiber {ACL_FIBER*} the specified fiber, if NULL the current running
* @return {int} get the error number of assosiated fiber
*/
FIBER_API int acl_fiber_errno(ACL_FIBER* fiber);
/**
* @deprecated
* @param fiber {ACL_FIBER*}
* @param yesno {int}
*/
FIBER_API void acl_fiber_keep_errno(ACL_FIBER* fiber, int yesno);
/**
* get the assosiated fiber's status
* @param fiber {ACL_FIBER*} the specified fiber, if NULL the current running
* @return {int}
*/
FIBER_API int acl_fiber_status(const ACL_FIBER* fiber);
/**
* kill the suspended fiber and notify it to exit
* @param fiber {const ACL_FIBER*} the specified fiber, NOT NULL
*/
FIBER_API void acl_fiber_kill(ACL_FIBER* fiber);
/**
* check if the current fiber has been killed
* @param fiber {ACL_FIBER*} the specified fiber, if NULL the current running
* @return {int} non zero returned if been killed
*/
FIBER_API int acl_fiber_killed(ACL_FIBER* fiber);
/**
* wakeup the suspended fiber with the assosiated signal number
* @param fiber {const ACL_FIBER*} the specified fiber, NOT NULL
* @param signum {int} SIGINT, SIGKILL, SIGTERM ... refer to bits/signum.h
*/
FIBER_API void acl_fiber_signal(ACL_FIBER* fiber, int signum);
/**
* get the signal number got from other fiber
* @param fiber {ACL_FIBER*} the specified fiber, if NULL the current running
* @retur {int} the signal number got
*/
FIBER_API int acl_fiber_signum(ACL_FIBER* fiber);
/**
* suspend the current running fiber
* @return {int}
*/
FIBER_API int acl_fiber_yield(void);
/**
* add the suspended fiber into resuming queue
* @param fiber {ACL_FIBER*} the fiber, NOT NULL
*/
FIBER_API void acl_fiber_ready(ACL_FIBER* fiber);
/**
* suspend the current fiber and switch to run the next ready fiber
*/
FIBER_API void acl_fiber_switch(void);
/**
* set the fiber schedule process with automatically, in this way, when one
* fiber was created, the schedule process will start automatically, but only
* the first fiber was started, so you can create the other fibers in this
* fiber. The default schedule mode is non-automatically, you should call the
* acl_fiber_schedule or acl_fiber_schedule_with explicit
*/
FIBER_API void acl_fiber_schedule_init(int on);
/**
* start the fiber schedule process, the fibers in the ready quque will be
* started in sequence.
*/
FIBER_API void acl_fiber_schedule(void);
/**
* start the fiber schedule process with the specified event type, the default
* event type is FIBER_EVENT_KERNEL. acl_fiber_schedule using the default
* event type. FIBER_EVENT_KERNEL is diffrent for diffrent OS platform:
* Linux: epoll; BSD: kqueue; Windows: iocp.
* @param event_mode {int} the event type, defined as FIBER_EVENT_XXX
*/
#define FIBER_EVENT_KERNEL 0 /* epoll/kqueue/iocp */
#define FIBER_EVENT_POLL 1 /* poll */
#define FIBER_EVENT_SELECT 2 /* select */
#define FIBER_EVENT_WMSG 3 /* win message */
FIBER_API void acl_fiber_schedule_with(int event_mode);
/**
* set the event type, the default type is FIBER_EVENT_KERNEL, this function
* must be called before acl_fiber_schedule.
* @param event_mode {int} the event type, defined as FIBER_EVENT_XXX
*/
FIBER_API void acl_fiber_schedule_set_event(int event_mode);
/**
* check if the current thread is in fiber schedule status
* @return {int} non zero returned if in fiber schedule status
*/
FIBER_API int acl_fiber_scheduled(void);
/**
* stop the fiber schedule process, all fibers will be stopped
*/
FIBER_API void acl_fiber_schedule_stop(void);
/**
* let the current fiber sleep for a while
* @param milliseconds {unsigned int} the milliseconds to sleep
* @return {unsigned int} the rest milliseconds returned after wakeup
*/
FIBER_API unsigned int acl_fiber_delay(unsigned int milliseconds);
/**
* let the current fiber sleep for a while
* @param seconds {unsigned int} the seconds to sleep
* @return {unsigned int} the rest seconds returned after wakeup
*/
FIBER_API unsigned int acl_fiber_sleep(unsigned int seconds);
/**
* create one fiber timer
* @param milliseconds {unsigned int} the timer wakeup milliseconds
* @param size {size_t} the virtual memory of the created fiber
* @param fn {void (*)(ACL_FIBER*, void*)} the callback when fiber wakeup
* @param ctx {void*} the second parameter of the callback fn
* @return {ACL_FIBER*} the new created fiber returned
*/
FIBER_API ACL_FIBER* acl_fiber_create_timer(unsigned int milliseconds,
size_t size, void (*fn)(ACL_FIBER*, void*), void* ctx);
/**
* reset the timer milliseconds time before the timer fiber wakeup
* @param timer {ACL_FIBER*} the fiber created by acl_fiber_create_timer
* @param milliseconds {unsigned int} the new timer wakeup milliseconds
*/
FIBER_API void acl_fiber_reset_timer(ACL_FIBER* timer, unsigned int milliseconds);
/**
* set the DNS service addr
* @param ip {const char*} ip of the DNS service
* @param port {int} port of the DNS service
*/
FIBER_API void acl_fiber_set_dns(const char* ip, int port);
/* for fiber specific */
/**
* set the current fiber's local object
* @param key {int*} the addr of indexed key, its initial value should <= 0,
* and one integer which > 0 will be set for it; the fiber local object will
* be assosiated with the indexed key.
* @param ctx {void *} the fiber local object
* @param free_fn {void (*)(void*)} the callback will be called before the
* current fiber exiting
* @return {int} the integer value(>0) of indexed key returned, value less than
* 0 will be returned if no running fiber
*/
FIBER_API int acl_fiber_set_specific(int* key, void* ctx, void (*free_fn)(void*));
/**
* get the current fiber's local object assosiated with the specified indexed key
* @param key {int} the integer value returned by acl_fiber_set_specific
* @retur {void*} NULL returned if no fiber local object with the specified key
*/
FIBER_API void* acl_fiber_get_specific(int key);
/****************************************************************************/
/**
* log function type used in fiber logging process, should be set by the
* function acl_fiber_msg_pre_write
* @param ctx {void*} the user's context
* @param fmt {const char*} format of parameters
* @param ap {va_list} list of parameters
*/
typedef void (*FIBER_MSG_PRE_WRITE_FN)(void *ctx, const char *fmt, va_list ap);
/**
* log function type used in fiber logging process, should be set by the
* function acl_fiber_msg_register. This can be used by user for get the
* logging information of fiber
* @param ctx {void*} the user's context
* @param fmt {const char*} format of parameters
* @param ap {va_list} list of parameters
*/
typedef void (*FIBER_MSG_WRITE_FN) (void *ctx, const char *fmt, va_list ap);
/**
* set the user's log saving function when process started
* @param write_fn {MSG_WRITE_FN} log function defined by the user
* @param ctx {void*} parameter will be transfered to write_fn
*/
FIBER_API void acl_fiber_msg_register(FIBER_MSG_WRITE_FN write_fn, void *ctx);
/**
* cleanup the registered log callback by acl_fiber_msg_register
*/
FIBER_API void acl_fiber_msg_unregister(void);
/**
* register the user's callback
* @param pre_write {MSG_PRE_WRITE_FN}
* @param ctx {void*}
*/
FIBER_API void acl_fiber_msg_pre_write(FIBER_MSG_PRE_WRITE_FN pre_write, void *ctx);
/**
* if showing the fiber schedule process's log to stdout
* @param onoff {int} log will be showed to stdout if onoff isn't 0
*/
FIBER_API void acl_fiber_msg_stdout_enable(int onoff);
/**
* get the system error number of last system API calling
* @return {int} error number
*/
FIBER_API int acl_fiber_last_error(void);
/**
* get the error information of last system API calling
* @return {const char*}
*/
FIBER_API const char *acl_fiber_last_serror(void);
/**
* set the system error number
* @param errnum {int} <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
void acl_fiber_set_error(int errnum);
/****************************************************************************/
#ifdef __cplusplus
}
#endif
#endif