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Overview
| Comment: | Allow compile-time options -DHAVE_GETHOSTUUID=0 and -DHAVE_GETHOSTUUID=1. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
3bcb9cc104e0265a600b03415ad95518 |
| User & Date: | drh 2019-09-27 16:33:27 |
Context
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2019-09-27
| ||
| 17:36 | Update requirement marks due to changes in documentation wording. (check-in: 326cdc16f4 user: drh tags: trunk) | |
| 16:33 | Allow compile-time options -DHAVE_GETHOSTUUID=0 and -DHAVE_GETHOSTUUID=1. (check-in: 3bcb9cc104 user: drh tags: trunk) | |
| 15:15 | Alternative implementation of the previous check-in which is testable. (check-in: 102ef64462 user: drh tags: trunk) | |
Changes
Changes to src/os_unix.c.
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#if SQLITE_ENABLE_LOCKING_STYLE
# include <sys/ioctl.h>
# include <sys/file.h>
# include <sys/param.h>
#endif /* SQLITE_ENABLE_LOCKING_STYLE */
#if defined(__APPLE__) && ((__MAC_OS_X_VERSION_MIN_REQUIRED > 1050) || \
(__IPHONE_OS_VERSION_MIN_REQUIRED > 2000))
# if (!defined(TARGET_OS_EMBEDDED) || (TARGET_OS_EMBEDDED==0)) \
&& (!defined(TARGET_IPHONE_SIMULATOR) || (TARGET_IPHONE_SIMULATOR==0))
# define HAVE_GETHOSTUUID 1
# else
# warning "gethostuuid() is disabled."
# endif
#endif
#if OS_VXWORKS
# include <sys/ioctl.h>
# include <semaphore.h>
................................................................................
#ifdef SQLITE_TEST
/* simulate multiple hosts by creating unique hostid file paths */
int sqlite3_hostid_num = 0;
#endif
#define PROXY_HOSTIDLEN 16 /* conch file host id length */
#ifdef HAVE_GETHOSTUUID
/* Not always defined in the headers as it ought to be */
extern int gethostuuid(uuid_t id, const struct timespec *wait);
#endif
/* get the host ID via gethostuuid(), pHostID must point to PROXY_HOSTIDLEN
** bytes of writable memory.
*/
static int proxyGetHostID(unsigned char *pHostID, int *pError){
assert(PROXY_HOSTIDLEN == sizeof(uuid_t));
memset(pHostID, 0, PROXY_HOSTIDLEN);
#ifdef HAVE_GETHOSTUUID
{
struct timespec timeout = {1, 0}; /* 1 sec timeout */
if( gethostuuid(pHostID, &timeout) ){
int err = errno;
if( pError ){
*pError = err;
}
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#if SQLITE_ENABLE_LOCKING_STYLE # include <sys/ioctl.h> # include <sys/file.h> # include <sys/param.h> #endif /* SQLITE_ENABLE_LOCKING_STYLE */ /* ** Try to determine if gethostuuid() is available based on standard ** macros. This might sometimes compute the wrong value for some ** obscure platforms. For those cases, simply compile with one of ** the following: ** ** -DHAVE_GETHOSTUUID=0 ** -DHAVE_GETHOSTUUID=1 ** ** None if this matters except when building on Apple products with ** -DSQLITE_ENABLE_LOCKING_STYLE. */ #ifndef HAVE_GETHOSTUUID # define HAVE_GETHOSTUUID 0 # if defined(__APPLE__) && ((__MAC_OS_X_VERSION_MIN_REQUIRED > 1050) || \ (__IPHONE_OS_VERSION_MIN_REQUIRED > 2000)) # if (!defined(TARGET_OS_EMBEDDED) || (TARGET_OS_EMBEDDED==0)) \ && (!defined(TARGET_IPHONE_SIMULATOR) || (TARGET_IPHONE_SIMULATOR==0)) # undef HAVE_GETHOSTUUID # define HAVE_GETHOSTUUID 1 # else # warning "gethostuuid() is disabled." # endif # endif #endif #if OS_VXWORKS # include <sys/ioctl.h> # include <semaphore.h> ................................................................................ #ifdef SQLITE_TEST /* simulate multiple hosts by creating unique hostid file paths */ int sqlite3_hostid_num = 0; #endif #define PROXY_HOSTIDLEN 16 /* conch file host id length */ #if HAVE_GETHOSTUUID /* Not always defined in the headers as it ought to be */ extern int gethostuuid(uuid_t id, const struct timespec *wait); #endif /* get the host ID via gethostuuid(), pHostID must point to PROXY_HOSTIDLEN ** bytes of writable memory. */ static int proxyGetHostID(unsigned char *pHostID, int *pError){ assert(PROXY_HOSTIDLEN == sizeof(uuid_t)); memset(pHostID, 0, PROXY_HOSTIDLEN); #if HAVE_GETHOSTUUID { struct timespec timeout = {1, 0}; /* 1 sec timeout */ if( gethostuuid(pHostID, &timeout) ){ int err = errno; if( pError ){ *pError = err; } |