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Merge branch 'PHP-7.2' into PHP-7.3

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* PHP-7.2:
  Avoid dependency on "struct flock" fields order.
This commit is contained in:
Dmitry Stogov 2019-02-12 10:21:59 +03:00
commit 470f5891d4
4 changed files with 56 additions and 103 deletions
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68
ext/opcache/ZendAccelerator.c
View file

@ -236,11 +236,12 @@ static inline void accel_restart_enter(void)
#ifdef ZEND_WIN32
INCREMENT(restart_in);
#else
# ifdef _AIX
static FLOCK_STRUCTURE(restart_in_progress, F_WRLCK, SEEK_SET, 2, 1);
# else
static const FLOCK_STRUCTURE(restart_in_progress, F_WRLCK, SEEK_SET, 2, 1);
#endif
struct flock restart_in_progress;
restart_in_progress.l_type = F_WRLCK;
restart_in_progress.l_whence = SEEK_SET;
restart_in_progress.l_start = 2;
restart_in_progress.l_len = 1;
if (fcntl(lock_file, F_SETLK, &restart_in_progress) == -1) {
zend_accel_error(ACCEL_LOG_DEBUG, "RestartC(+1): %s (%d)", strerror(errno), errno);
@ -255,11 +256,12 @@ static inline void accel_restart_leave(void)
ZCSG(restart_in_progress) = 0;
DECREMENT(restart_in);
#else
# ifdef _AIX
static FLOCK_STRUCTURE(restart_finished, F_UNLCK, SEEK_SET, 2, 1);
# else
static const FLOCK_STRUCTURE(restart_finished, F_UNLCK, SEEK_SET, 2, 1);
# endif
struct flock restart_finished;
restart_finished.l_type = F_UNLCK;
restart_finished.l_whence = SEEK_SET;
restart_finished.l_start = 2;
restart_finished.l_len = 1;
ZCSG(restart_in_progress) = 0;
if (fcntl(lock_file, F_SETLK, &restart_finished) == -1) {
@ -272,7 +274,12 @@ static inline int accel_restart_is_active(void)
{
if (ZCSG(restart_in_progress)) {
#ifndef ZEND_WIN32
FLOCK_STRUCTURE(restart_check, F_WRLCK, SEEK_SET, 2, 1);
struct flock restart_check;
restart_check.l_type = F_WRLCK;
restart_check.l_whence = SEEK_SET;
restart_check.l_start = 2;
restart_check.l_len = 1;
if (fcntl(lock_file, F_GETLK, &restart_check) == -1) {
zend_accel_error(ACCEL_LOG_DEBUG, "RestartC: %s (%d)", strerror(errno), errno);
@ -297,11 +304,12 @@ static inline int accel_activate_add(void)
#ifdef ZEND_WIN32
INCREMENT(mem_usage);
#else
# ifdef _AIX
static FLOCK_STRUCTURE(mem_usage_lock, F_RDLCK, SEEK_SET, 1, 1);
# else
static const FLOCK_STRUCTURE(mem_usage_lock, F_RDLCK, SEEK_SET, 1, 1);
# endif
struct flock mem_usage_lock;
mem_usage_lock.l_type = F_RDLCK;
mem_usage_lock.l_whence = SEEK_SET;
mem_usage_lock.l_start = 1;
mem_usage_lock.l_len = 1;
if (fcntl(lock_file, F_SETLK, &mem_usage_lock) == -1) {
zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC(+1): %s (%d)", strerror(errno), errno);
@ -320,11 +328,12 @@ static inline void accel_deactivate_sub(void)
ZCG(counted) = 0;
}
#else
# ifdef _AIX
static FLOCK_STRUCTURE(mem_usage_unlock, F_UNLCK, SEEK_SET, 1, 1);
# else
static const FLOCK_STRUCTURE(mem_usage_unlock, F_UNLCK, SEEK_SET, 1, 1);
# endif
struct flock mem_usage_unlock;
mem_usage_unlock.l_type = F_UNLCK;
mem_usage_unlock.l_whence = SEEK_SET;
mem_usage_unlock.l_start = 1;
mem_usage_unlock.l_len = 1;
if (fcntl(lock_file, F_SETLK, &mem_usage_unlock) == -1) {
zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC(-1): %s (%d)", strerror(errno), errno);
@ -337,11 +346,12 @@ static inline void accel_unlock_all(void)
#ifdef ZEND_WIN32
accel_deactivate_sub();
#else
# ifdef _AIX
static FLOCK_STRUCTURE(mem_usage_unlock_all, F_UNLCK, SEEK_SET, 0, 0);
# else
static const FLOCK_STRUCTURE(mem_usage_unlock_all, F_UNLCK, SEEK_SET, 0, 0);
# endif
struct flock mem_usage_unlock_all;
mem_usage_unlock_all.l_type = F_UNLCK;
mem_usage_unlock_all.l_whence = SEEK_SET;
mem_usage_unlock_all.l_start = 0;
mem_usage_unlock_all.l_len = 0;
if (fcntl(lock_file, F_SETLK, &mem_usage_unlock_all) == -1) {
zend_accel_error(ACCEL_LOG_DEBUG, "UnlockAll: %s (%d)", strerror(errno), errno);
@ -830,8 +840,12 @@ static inline int accel_is_inactive(void)
return SUCCESS;
}
#else
FLOCK_STRUCTURE(mem_usage_check, F_WRLCK, SEEK_SET, 1, 1);
struct flock mem_usage_check;
mem_usage_check.l_type = F_WRLCK;
mem_usage_check.l_whence = SEEK_SET;
mem_usage_check.l_start = 1;
mem_usage_check.l_len = 1;
mem_usage_check.l_pid = -1;
if (fcntl(lock_file, F_GETLK, &mem_usage_check) == -1) {
zend_accel_error(ACCEL_LOG_DEBUG, "UpdateC: %s (%d)", strerror(errno), errno);

13
ext/opcache/ZendAccelerator.h
View file

@ -89,19 +89,6 @@
/*** file locking ***/
#ifndef ZEND_WIN32
extern int lock_file;
# if defined(HAVE_FLOCK_AIX64)
# define FLOCK_STRUCTURE(name, type, whence, start, len) \
struct flock name = {type, whence, 0, 0, 0, start, len }
# elif defined(HAVE_FLOCK_BSD)
# define FLOCK_STRUCTURE(name, type, whence, start, len) \
struct flock name = {start, len, -1, type, whence}
# elif defined(HAVE_FLOCK_LINUX)
# define FLOCK_STRUCTURE(name, type, whence, start, len) \
struct flock name = {type, whence, start, len}
# else
# error "Don't know how to define struct flock"
# endif
#endif
#if defined(HAVE_OPCACHE_FILE_CACHE) && defined(ZEND_WIN32)

57
ext/opcache/config.m4
View file

@ -341,63 +341,6 @@ int main() {
msg=yes],[msg=no],[msg=no])
AC_MSG_RESULT([$msg])
flock_type=unknown
AC_MSG_CHECKING(for struct flock layout)
if test "$flock_type" = "unknown"; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <fcntl.h>
struct flock lock = { 1, 2, 3, 4, 5, 6, 7 };
int main() {
if(lock.l_type == 1 && lock.l_whence == 2 && lock.l_start == 6 && lock.l_len== 7) {
return 0;
}
return 1;
}
]])], [
flock_type=aix64
AC_DEFINE([HAVE_FLOCK_AIX64], [], [Struct flock is 64-bit AIX-type])
], [])
fi
if test "$flock_type" = "unknown"; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <fcntl.h>
struct flock lock = { 1, 2, 3, 4, 5 };
int main() {
if(lock.l_type == 1 && lock.l_whence == 2 && lock.l_start == 3 && lock.l_len == 4) {
return 0;
}
return 1;
}
]])], [
flock_type=linux
AC_DEFINE([HAVE_FLOCK_LINUX], [], [Struct flock is Linux-type])
], [])
fi
if test "$flock_type" = "unknown"; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <fcntl.h>
struct flock lock = { 1, 2, 3, 4, 5 };
int main() {
if(lock.l_start == 1 && lock.l_len == 2 && lock.l_type == 4 && lock.l_whence == 5) {
return 0;
}
return 1;
}
]])], [
flock_type=bsd
AC_DEFINE([HAVE_FLOCK_BSD], [], [Struct flock is BSD-type])
], [])
fi
AC_MSG_RESULT([$flock_type])
if test "$flock_type" = "unknown"; then
AC_MSG_ERROR([Don't know how to define struct flock on this system[,] set --enable-opcache=no])
fi
PHP_NEW_EXTENSION(opcache,
ZendAccelerator.c \
zend_accelerator_blacklist.c \

21
ext/opcache/zend_shared_alloc.c
View file

@ -375,15 +375,15 @@ void zend_shared_alloc_safe_unlock(void)
}
}
#ifndef ZEND_WIN32
/* name l_type l_whence l_start l_len */
static FLOCK_STRUCTURE(mem_write_lock, F_WRLCK, SEEK_SET, 0, 1);
static FLOCK_STRUCTURE(mem_write_unlock, F_UNLCK, SEEK_SET, 0, 1);
#endif
void zend_shared_alloc_lock(void)
{
#ifndef ZEND_WIN32
struct flock mem_write_lock;
mem_write_lock.l_type = F_WRLCK;
mem_write_lock.l_whence = SEEK_SET;
mem_write_lock.l_start = 0;
mem_write_lock.l_len = 1;
#ifdef ZTS
tsrm_mutex_lock(zts_lock);
@ -414,6 +414,15 @@ void zend_shared_alloc_lock(void)
void zend_shared_alloc_unlock(void)
{
#ifndef ZEND_WIN32
struct flock mem_write_unlock;
mem_write_unlock.l_type = F_UNLCK;
mem_write_unlock.l_whence = SEEK_SET;
mem_write_unlock.l_start = 0;
mem_write_unlock.l_len = 1;
#endif
ZCG(locked) = 0;
#ifndef ZEND_WIN32