Changeset: cc4d4518d4be for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=cc4d4518d4be
Modified Files:
common/utils/msabaoth.c
common/utils/mutils.c
gdk/gdk_bbp.c
gdk/gdk_utils.c
monetdb5/mal/mal_readline.c
monetdb5/tests/BugTracker/Tests/parser.SF-2051309.stable.out
sql/test/BugTracker-2012/Tests/table_function_with_column_subselects.Bug-3172.stable.err
tools/merovingian/daemon/argvcmds.c
tools/merovingian/daemon/merovingian.c
Branch: Jan2014
Log Message:
merged
diffs (truncated from 474 to 300 lines):
diff --git a/common/utils/msabaoth.c b/common/utils/msabaoth.c
--- a/common/utils/msabaoth.c
+++ b/common/utils/msabaoth.c
@@ -49,6 +49,7 @@
#if defined(_MSC_VER) && _MSC_VER >= 1400
#define close _close
#define unlink _unlink
+#define fdopen _fdopen
#endif
#define PATHLENGTH 4096
@@ -674,7 +675,7 @@ msab_getStatus(sabdb** ret, char *dbname
} else {
/* locking succeed, check for a crash in the uplog */
snprintf(log, sizeof(log), "%s/%s/%s", path, e->d_name,
UPLOGFILE);
- if ((f = fopen(log, "r")) != NULL) {
+ if ((f = fdopen(fd, "r+")) != NULL) {
(void)fseek(f, -1, SEEK_END);
if (fread(data, 1, 1, f) != 1) {
/* the log is empty, assume no crash */
@@ -684,11 +685,13 @@ msab_getStatus(sabdb** ret, char *dbname
} else { /* should be \t */
sdb->state = SABdbCrashed;
}
+ /* release the lock */
+ MT_lockf(buf, F_ULOCK, 4, 1);
(void)fclose(f);
- } /* cannot happen, we checked it before */
-
- /* release the lock */
- close(fd);
+ } else {
+ /* shouldn't happen */
+ close(fd);
+ }
}
snprintf(buf, sizeof(buf), "%s/%s/%s", path, e->d_name,
MAINTENANCEFILE);
diff --git a/common/utils/mutils.c b/common/utils/mutils.c
--- a/common/utils/mutils.c
+++ b/common/utils/mutils.c
@@ -204,12 +204,16 @@ dirname(char *path)
int
MT_lockf(char *filename, int mode, off_t off, off_t len)
{
- int ret = 1, illegalmode = 0, fd = -1;
+ int ret = 1, fd = -1;
OVERLAPPED ov;
OSVERSIONINFO os;
- HANDLE fh = CreateFile(filename,
- GENERIC_READ | GENERIC_WRITE, 0,
- NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+ HANDLE fh;
+ static struct lockedfiles {
+ struct lockedfiles *next;
+ char *filename;
+ int fildes;
+ } *lockedfiles;
+ struct lockedfiles **fpp, *fp;
os.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&os);
@@ -230,36 +234,59 @@ MT_lockf(char *filename, int mode, off_t
#endif
#endif
- if (fh == NULL) {
+ if (mode == F_ULOCK) {
+ for (fpp = &lockedfiles; (fp = *fpp) != NULL; fpp = &fp->next) {
+ if (strcmp(fp->filename, filename) == 0) {
+ free(fp->filename);
+ fd = fp->fildes;
+ fh = (HANDLE) _get_osfhandle(fd);
+ fp = *fpp;
+ *fpp = fp->next;
+ free(fp);
+ ret = UnlockFileEx(fh, 0, len, 0, &ov);
+ return ret ? 0 : -1;
+ }
+ }
+ /* didn't find the locked file, try opening the file
+ * directly */
+ fh = CreateFile(filename,
+ GENERIC_READ | GENERIC_WRITE, 0,
+ NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+ if (fh == INVALID_HANDLE_VALUE)
+ return -2;
+ ret = UnlockFileEx(fh, 0, len, 0, &ov);
+ CloseHandle(fh);
+ return 0;
+ }
+
+ fd = open(filename, O_CREAT | O_RDWR | O_TEXT, MONETDB_MODE);
+ if (fd < 0)
+ return -2;
+ fh = (HANDLE) _get_osfhandle(fd);
+ if (fh == INVALID_HANDLE_VALUE) {
+ close(fd);
return -2;
}
- if (mode == F_ULOCK) {
- if (os.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS)
- ret = UnlockFileEx(fh, 0, 0, len, &ov);
- } else if (mode == F_TLOCK) {
- if (os.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS)
- ret = LockFileEx(fh, LOCKFILE_FAIL_IMMEDIATELY |
LOCKFILE_EXCLUSIVE_LOCK, 0, 0, len, &ov);
+
+ if (mode == F_TLOCK) {
+ ret = LockFileEx(fh, LOCKFILE_FAIL_IMMEDIATELY |
LOCKFILE_EXCLUSIVE_LOCK, 0, len, 0, &ov);
} else if (mode == F_LOCK) {
- if (os.dwPlatformId != VER_PLATFORM_WIN32_WINDOWS)
- ret = LockFileEx(fh, LOCKFILE_EXCLUSIVE_LOCK, 0, 0,
len, &ov);
+ ret = LockFileEx(fh, LOCKFILE_EXCLUSIVE_LOCK, 0, len, 0, &ov);
} else {
- illegalmode = 1;
- }
- CloseHandle(fh);
- if (illegalmode) {
+ close(fd);
SetLastError(ERROR_INVALID_DATA);
+ return -2;
}
if (ret != 0) {
- fd = open(filename, O_CREAT | O_RDWR, MONETDB_MODE);
- if (fd < 0) {
- /* this is nasty, but I "trust" windows that it in this
case
- * also cannot open the file into a filehandle any
more, so
- * unlocking is in vain. */
- return -2;
- } else {
- return fd;
+ if ((fp = malloc(sizeof(*fp))) != NULL &&
+ (fp->filename = strdup(filename)) != NULL) {
+ fp->fildes = fd;
+ fp->next = lockedfiles;
+ lockedfiles = fp;
}
+ return fd;
} else {
+ close(fd);
return -1;
}
}
@@ -292,20 +319,25 @@ lockf(int fd, int cmd, off_t len)
}
#endif
+#ifndef O_TEXT
+#define O_TEXT 0
+#endif
/* returns -1 when locking failed,
* returns -2 when the lock file could not be opened/created
* returns the (open) file descriptor to the file otherwise */
int
MT_lockf(char *filename, int mode, off_t off, off_t len)
{
- int fd = open(filename, O_CREAT | O_RDWR, MONETDB_MODE);
+ int fd = open(filename, O_CREAT | O_RDWR | O_TEXT, MONETDB_MODE);
if (fd < 0)
return -2;
- if (lseek(fd, off, SEEK_SET) == off && lockf(fd, mode, len) == 0) {
+ if (lseek(fd, off, SEEK_SET) >= 0 &&
+ lockf(fd, mode, len) == 0) {
/* do not close else we lose the lock we want */
- return fd;
+ (void) lseek(fd, 0, SEEK_SET); /* move seek pointer back */
+ return mode == F_ULOCK ? 0 : fd;
}
close(fd);
return -1;
diff --git a/gdk/gdk_bbp.c b/gdk/gdk_bbp.c
--- a/gdk/gdk_bbp.c
+++ b/gdk/gdk_bbp.c
@@ -3452,7 +3452,8 @@ BBPrecover(void)
dstdir = dstpath + j;
IODEBUG THRprintf(GDKstdout, "#BBPrecover(start)\n");
- mkdir(LEFTDIR, 0755);
+ if (mkdir(LEFTDIR, 0755) < 0 && errno != EEXIST)
+ return -1;;
/* move back all files */
while ((dent = readdir(dirp)) != NULL) {
diff --git a/gdk/gdk_utils.c b/gdk/gdk_utils.c
--- a/gdk/gdk_utils.c
+++ b/gdk/gdk_utils.c
@@ -72,7 +72,6 @@ BAT *GDKval = NULL;
static volatile ATOMIC_FLAG GDKstopped = ATOMIC_FLAG_INIT;
static void GDKunlockHome(void);
-static int GDKgetHome(void);
#undef malloc
#undef calloc
@@ -200,14 +199,13 @@ GDKlog(const char *format, ...)
{
va_list ap;
char *p = 0, buf[1024];
- int mustopen = GDKgetHome();
time_t tm = time(0);
#if defined(HAVE_CTIME_R3) || defined(HAVE_CTIME_R)
char tbuf[26];
#endif
char *ctm;
- if (MT_pagesize() == 0)
+ if (MT_pagesize() == 0 || GDKlockFile == NULL)
return;
va_start(ap, format);
@@ -235,9 +233,6 @@ GDKlog(const char *format, ...)
#endif
fprintf(GDKlockFile, "USR=%d PID=%d TIME=%.24s @ %s\n", (int) getuid(),
(int) getpid(), ctm, buf);
fflush(GDKlockFile);
-
- if (mustopen)
- GDKunlockHome();
}
/*
@@ -1004,6 +999,7 @@ GDKinit(opt *set, int setlen)
_set_abort_behavior(0, _CALL_REPORTFAULT | _WRITE_ABORT_MSG);
_set_error_mode(_OUT_TO_STDERR);
#endif
+ /* now try to lock the database */
GDKlockHome();
/* Mserver by default takes 80% of all memory as a default */
@@ -1149,6 +1145,10 @@ GDKexiting(void)
void
GDKexit(int status)
{
+ if (GDKlockFile == NULL) {
+ /* no database lock, so no threads, so exit now */
+ exit(status);
+ }
if (ATOMIC_TAS(GDKstopped, GDKstoppedLock, "GDKexit") == 0) {
MT_Id pid = MT_getpid();
Thread t, s;
@@ -1185,7 +1185,6 @@ GDKexit(int status)
}
MT_lock_unset(&GDKthreadLock, "GDKexit");
}
- (void) GDKgetHome();
#if 0
/* we can't clean up after killing threads */
BBPexit();
@@ -1227,8 +1226,9 @@ MT_Lock GDKtmLock MT_LOCK_INITIALIZER("G
static void
GDKlockHome(void)
{
- char *p = 0, buf[1024], host[PATHLENGTH];
+ int fd;
+ assert(GDKlockFile == NULL);
/*
* Go there and obtain the global database lock.
*/
@@ -1244,21 +1244,16 @@ GDKlockHome(void)
GDKfatal("GDKlockHome: could not move to %s\n",
GDKdbpathStr);
IODEBUG THRprintf(GDKstdout, "#GDKlockHome: created directory
%s\n", GDKdbpathStr);
}
- if (MT_lockf(GDKLOCK, F_TLOCK, 4, 1) < 0) {
- GDKlockFile = 0;
+ if ((fd = MT_lockf(GDKLOCK, F_TLOCK, 4, 1)) < 0) {
GDKfatal("GDKlockHome: Database lock '%s' denied\n", GDKLOCK);
}
- if ((GDKlockFile = fopen(GDKLOCK, "rb+")) == NULL) {
+
+ /* now we have the lock on the database */
+
+ if ((GDKlockFile = fdopen(fd, "r+")) == NULL) {
+ close(fd);
GDKfatal("GDKlockHome: Could not open %s\n", GDKLOCK);
}
- if (fgets(buf, 1024, GDKlockFile) && (p = strchr(buf, ':')))
- *p = 0;
- if (p) {
- sprintf(host, " from '%s'", buf);
- } else {
- IODEBUG THRprintf(GDKstdout, "#GDKlockHome: ignoring empty or
invalid %s.\n", GDKLOCK);
- host[0] = 0;
- }
/*
* We have the lock, are the only process currently allowed in
* this section.
@@ -1290,28 +1285,8 @@ GDKunlockHome(void)
}
/*
- * Really really get the lock. Now!!
- */
-static int
-GDKgetHome(void)
-{
- if (MT_pagesize() == 0 || GDKlockFile)
- return 0;
- while ((GDKlockFile = fopen(GDKLOCK, "r+")) == NULL) {
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