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Edit File : zend_signal.h \| Size : 3.98 KB
/* +----------------------------------------------------------------------+ \| Zend Signal Handling \| +----------------------------------------------------------------------+ \| Copyright (c) The PHP Group \| +----------------------------------------------------------------------+ \| This source file is subject to version 3.01 of the PHP license, \| \| that is bundled with this package in the file LICENSE, and is \| \| available through the world-wide-web at the following url: \| \| https://www.php.net/license/3_01.txt \| \| If you did not receive a copy of the PHP license and are unable to \| \| obtain it through the world-wide-web, please send a note to \| \| license@php.net so we can mail you a copy immediately. \| +----------------------------------------------------------------------+ \| Authors: Lucas Nealan <lucas@php.net> \| \| Arnaud Le Blanc <lbarnaud@php.net> \| +----------------------------------------------------------------------+ / #ifndef ZEND_SIGNAL_H #define ZEND_SIGNAL_H #ifdef ZEND_SIGNALS #include <signal.h> #ifndef NSIG #define NSIG 65 #endif #ifndef ZEND_SIGNAL_QUEUE_SIZE #define ZEND_SIGNAL_QUEUE_SIZE 64 #endif / Signal structs / typedef struct _zend_signal_entry_t { int flags; / sigaction style flags / void handler; /* signal handler or context / } zend_signal_entry_t; typedef struct _zend_signal_t { int signo; siginfo_t siginfo; void* context; } zend_signal_t; typedef struct _zend_signal_queue_t { zend_signal_t zend_signal; struct _zend_signal_queue_t next; } zend_signal_queue_t; / Signal Globals / typedef struct _zend_signal_globals_t { int depth; int blocked; / 1==TRUE, 0==FALSE / int running; / in signal handler execution / int active; / internal signal handling is enabled / bool check; / check for replaced handlers on shutdown / bool reset; / reset signal handlers on each request / zend_signal_entry_t handlers[NSIG]; zend_signal_queue_t pstorage[ZEND_SIGNAL_QUEUE_SIZE], phead, ptail, pavail; /* pending queue / } zend_signal_globals_t; # ifdef ZTS # define SIGG(v) ZEND_TSRMG_FAST(zend_signal_globals_offset, zend_signal_globals_t , v) BEGIN_EXTERN_C() ZEND_API extern int zend_signal_globals_id; ZEND_API extern size_t zend_signal_globals_offset; END_EXTERN_C() # else # define SIGG(v) (zend_signal_globals.v) BEGIN_EXTERN_C() ZEND_API extern zend_signal_globals_t zend_signal_globals; END_EXTERN_C() # endif /* not ZTS / # ifdef ZTS # define ZEND_SIGNAL_BLOCK_INTERRUPTIONS() if (EXPECTED(zend_signal_globals_id)) { SIGG(depth)++; } # define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (EXPECTED(zend_signal_globals_id) && UNEXPECTED(((SIGG(depth)--) == SIGG(blocked)))) { zend_signal_handler_unblock(); } # else / ZTS / # define ZEND_SIGNAL_BLOCK_INTERRUPTIONS() SIGG(depth)++; # define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (((SIGG(depth)--) == SIGG(blocked))) { zend_signal_handler_unblock(); } # endif / not ZTS / ZEND_API void zend_signal_handler_unblock(void); void zend_signal_activate(void); void zend_signal_deactivate(void); BEGIN_EXTERN_C() ZEND_API void zend_signal_startup(void); END_EXTERN_C() void zend_signal_init(void); ZEND_API void zend_signal(int signo, void (handler)(int)); ZEND_API void zend_sigaction(int signo, const struct sigaction act, struct sigaction oldact); #else /* ZEND_SIGNALS / # define ZEND_SIGNAL_BLOCK_INTERRUPTIONS() # define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() # define zend_signal_activate() # define zend_signal_deactivate() # define zend_signal_startup() # define zend_signal_init() # define zend_signal(signo, handler) signal(signo, handler) # define zend_sigaction(signo, act, oldact) sigaction(signo, act, oldact) #endif / ZEND_SIGNALS / #endif / ZEND_SIGNAL_H */ Back

Edit File : zend_signal.h | Size : 3.98 KB

/*
  +----------------------------------------------------------------------+
  | Zend Signal Handling                                                 |
  +----------------------------------------------------------------------+
  | Copyright (c) The PHP Group                                          |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | https://www.php.net/license/3_01.txt                                 |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Authors: Lucas Nealan <lucas@php.net>                                |
  |          Arnaud Le Blanc <lbarnaud@php.net>                          |
  +----------------------------------------------------------------------+

#ifndef ZEND_SIGNAL_H
#define ZEND_SIGNAL_H

#ifdef ZEND_SIGNALS

#include <signal.h>

#ifndef NSIG
#define NSIG 65
#endif

#ifndef ZEND_SIGNAL_QUEUE_SIZE
#define ZEND_SIGNAL_QUEUE_SIZE 64
#endif

/* Signal structs */
typedef struct _zend_signal_entry_t {
	int   flags;          /* sigaction style flags */
	void* handler;      /* signal handler or context */
} zend_signal_entry_t;

typedef struct _zend_signal_t {
	int signo;
	siginfo_t *siginfo;
	void* context;
} zend_signal_t;

typedef struct _zend_signal_queue_t {
	zend_signal_t zend_signal;
	struct _zend_signal_queue_t *next;
} zend_signal_queue_t;

/* Signal Globals */
typedef struct _zend_signal_globals_t {
	int depth;
	int blocked;            /* 1==TRUE, 0==FALSE */
	int running;            /* in signal handler execution */
	int active;             /* internal signal handling is enabled */
	bool check;        /* check for replaced handlers on shutdown */
	bool reset;        /* reset signal handlers on each request */
	zend_signal_entry_t handlers[NSIG];
	zend_signal_queue_t pstorage[ZEND_SIGNAL_QUEUE_SIZE], *phead, *ptail, *pavail; /* pending queue */
} zend_signal_globals_t;

# ifdef ZTS
#  define SIGG(v) ZEND_TSRMG_FAST(zend_signal_globals_offset, zend_signal_globals_t *, v)
BEGIN_EXTERN_C()
ZEND_API extern int zend_signal_globals_id;
ZEND_API extern size_t zend_signal_globals_offset;
END_EXTERN_C()
# else
#  define SIGG(v) (zend_signal_globals.v)
BEGIN_EXTERN_C()
ZEND_API extern zend_signal_globals_t zend_signal_globals;
END_EXTERN_C()
# endif /* not ZTS */

# ifdef ZTS
#  define ZEND_SIGNAL_BLOCK_INTERRUPTIONS() if (EXPECTED(zend_signal_globals_id)) { SIGG(depth)++; }
#  define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (EXPECTED(zend_signal_globals_id) && UNEXPECTED(((SIGG(depth)--) == SIGG(blocked)))) { zend_signal_handler_unblock(); }
# else /* ZTS */
#  define ZEND_SIGNAL_BLOCK_INTERRUPTIONS()  SIGG(depth)++;
#  define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (((SIGG(depth)--) == SIGG(blocked))) { zend_signal_handler_unblock(); }
# endif /* not ZTS */

ZEND_API void zend_signal_handler_unblock(void);
void zend_signal_activate(void);
void zend_signal_deactivate(void);
BEGIN_EXTERN_C()
ZEND_API void zend_signal_startup(void);
END_EXTERN_C()
void zend_signal_init(void);

ZEND_API void zend_signal(int signo, void (*handler)(int));
ZEND_API void zend_sigaction(int signo, const struct sigaction *act, struct sigaction *oldact);

#else /* ZEND_SIGNALS */

# define ZEND_SIGNAL_BLOCK_INTERRUPTIONS()
# define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS()

# define zend_signal_activate()
# define zend_signal_deactivate()
# define zend_signal_startup()
# define zend_signal_init()

# define zend_signal(signo, handler)           signal(signo, handler)
# define zend_sigaction(signo, act, oldact)    sigaction(signo, act, oldact)

#endif /* ZEND_SIGNALS */

#endif /* ZEND_SIGNAL_H */

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