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Overview
| Comment: | Invoke the unix open() system call through a wrapper to avoid problems resulting from differing declarations to that function in various systems. |
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| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
4c7ff4dd352276e9c01cc536e188cbcd |
| User & Date: | drh 2011-04-25 18:01:27.439 |
Context
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2011-04-25
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| 18:03 | Add the (deliberately undocumented) sqlite_log() SQL function as a built-in. (check-in: f7806e0399 user: drh tags: trunk) | |
| 18:01 | Invoke the unix open() system call through a wrapper to avoid problems resulting from differing declarations to that function in various systems. (check-in: 4c7ff4dd35 user: drh tags: trunk) | |
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2011-04-24
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| 22:56 | Disable the transfer optimization if the destination table contains any foreign key constraint and foreign key constraints are enabled. Ticket [6284df89debdf]. (check-in: ddeea5ab5f user: drh tags: trunk) | |
Changes
Changes to src/os_unix.c.
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** testing and debugging only.
*/
#if SQLITE_THREADSAFE
#define threadid pthread_self()
#else
#define threadid 0
#endif
/*
** Many system calls are accessed through pointer-to-functions so that
** they may be overridden at runtime to facilitate fault injection during
** testing and sandboxing. The following array holds the names and pointers
** to all overrideable system calls.
*/
static struct unix_syscall {
const char *zName; /* Name of the sytem call */
sqlite3_syscall_ptr pCurrent; /* Current value of the system call */
sqlite3_syscall_ptr pDefault; /* Default value */
} aSyscall[] = {
| > > > > > > > > > > > > | | | 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 |
** testing and debugging only.
*/
#if SQLITE_THREADSAFE
#define threadid pthread_self()
#else
#define threadid 0
#endif
/*
** Different Unix systems declare open() in different ways. Same use
** open(const char*,int,mode_t). Others use open(const char*,int,...).
** The difference is important when using a pointer to the function.
**
** The safest way to deal with the problem is to always use this wrapper
** which always has the same well-defined interface.
*/
static int posixOpen(const char *zFile, int flags, int mode){
return open(zFile, flags, mode);
}
/*
** Many system calls are accessed through pointer-to-functions so that
** they may be overridden at runtime to facilitate fault injection during
** testing and sandboxing. The following array holds the names and pointers
** to all overrideable system calls.
*/
static struct unix_syscall {
const char *zName; /* Name of the sytem call */
sqlite3_syscall_ptr pCurrent; /* Current value of the system call */
sqlite3_syscall_ptr pDefault; /* Default value */
} aSyscall[] = {
{ "open", (sqlite3_syscall_ptr)posixOpen, 0 },
#define osOpen ((int(*)(const char*,int,int))aSyscall[0].pCurrent)
{ "close", (sqlite3_syscall_ptr)close, 0 },
#define osClose ((int(*)(int))aSyscall[1].pCurrent)
{ "access", (sqlite3_syscall_ptr)access, 0 },
#define osAccess ((int(*)(const char*,int))aSyscall[2].pCurrent)
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