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use legacy flock() only on linux. at least on OS X flock aliases to

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fcntl.
This commit is contained in:
Oswald Buddenhagen 2004-09-20 11:31:55 +00:00
parent e0cc45044f
commit 3f8e820acb
1 changed files with 7 additions and 0 deletions
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7
src/drv_maildir.c
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@ -38,6 +38,9 @@
#include <time.h> #include <time.h>
#define USE_DB 1 #define USE_DB 1
#ifdef __linux__
# define LEGACY_FLOCK 1
#endif
#ifdef USE_DB #ifdef USE_DB
#include <db.h> #include <db.h>
@ -355,11 +358,13 @@ maildir_uidval_lock( maildir_store_t *ctx )
int n; int n;
char buf[128]; char buf[128];
#ifdef LEGACY_FLOCK
/* This is legacy only */ /* This is legacy only */
if (flock( ctx->uvfd, LOCK_EX ) < 0) { if (flock( ctx->uvfd, LOCK_EX ) < 0) {
fprintf( stderr, "Maildir error: cannot flock UIDVALIDITY.\n" ); fprintf( stderr, "Maildir error: cannot flock UIDVALIDITY.\n" );
return DRV_BOX_BAD; return DRV_BOX_BAD;
} }
#endif
/* This (theoretically) works over NFS. Let's hope nobody else did /* This (theoretically) works over NFS. Let's hope nobody else did
the same in the opposite order, as we'd deadlock then. */ the same in the opposite order, as we'd deadlock then. */
#if SEEK_SET != 0 #if SEEK_SET != 0
@ -384,8 +389,10 @@ maildir_uidval_unlock( maildir_store_t *ctx )
{ {
lck.l_type = F_UNLCK; lck.l_type = F_UNLCK;
fcntl( ctx->uvfd, F_SETLK, &lck ); fcntl( ctx->uvfd, F_SETLK, &lck );
#ifdef LEGACY_FLOCK
/* This is legacy only */ /* This is legacy only */
flock( ctx->uvfd, LOCK_UN ); flock( ctx->uvfd, LOCK_UN );
#endif
} }
static int static int