#ifndef ZEND_SIGNAL_H
#define ZEND_SIGNAL_H
#ifdef ZEND_SIGNALS
# ifdef HAVE_SIGNAL_H
# include <signal.h>
# endif
#ifndef NSIG
#define NSIG 65
#endif
#ifndef ZEND_SIGNAL_QUEUE_SIZE
#define ZEND_SIGNAL_QUEUE_SIZE 64
#endif
typedef struct _zend_signal_entry_t {
int flags;
void* handler;
} 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;
typedef struct _zend_signal_globals_t {
int depth;
int blocked;
int running;
int active;
zend_bool check;
zend_signal_entry_t handlers[NSIG];
zend_signal_queue_t pstorage[ZEND_SIGNAL_QUEUE_SIZE], *phead, *ptail, *pavail;
} zend_signal_globals_t;
# ifdef ZTS
# define SIGG(v) ZEND_TSRMG(zend_signal_globals_id, zend_signal_globals_t *, v)
BEGIN_EXTERN_C()
ZEND_API extern int zend_signal_globals_id;
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
# 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
# define ZEND_SIGNAL_BLOCK_INTERRUPTIONS() SIGG(depth)++;
# define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (((SIGG(depth)--) == SIGG(blocked))) { zend_signal_handler_unblock(); }
# endif
ZEND_API void zend_signal_handler_unblock(void);
void zend_signal_activate(void);
void zend_signal_deactivate(void);
BEGIN_EXTERN_C()
void zend_signal_startup(void);
END_EXTERN_C()
void zend_signal_init(void);
ZEND_API int zend_signal(int signo, void (*handler)(int));
ZEND_API int zend_sigaction(int signo, const struct sigaction *act, struct sigaction *oldact);
#else
# 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
#endif