1*7c478bd9Sstevel@tonic-gate #include "ipf.h" 2*7c478bd9Sstevel@tonic-gate 3*7c478bd9Sstevel@tonic-gate #define EMM_MAGIC 0x9d7adba3 4*7c478bd9Sstevel@tonic-gate 5*7c478bd9Sstevel@tonic-gate void eMmutex_enter(mtx, file, line) 6*7c478bd9Sstevel@tonic-gate eMmutex_t *mtx; 7*7c478bd9Sstevel@tonic-gate char *file; 8*7c478bd9Sstevel@tonic-gate int line; 9*7c478bd9Sstevel@tonic-gate { 10*7c478bd9Sstevel@tonic-gate if (mtx->eMm_magic != EMM_MAGIC) { 11*7c478bd9Sstevel@tonic-gate fprintf(stderr, "%s:eMmutex_enter(%p): bad magic: %#x\n", 12*7c478bd9Sstevel@tonic-gate mtx->eMm_owner, mtx, mtx->eMm_magic); 13*7c478bd9Sstevel@tonic-gate abort(); 14*7c478bd9Sstevel@tonic-gate } 15*7c478bd9Sstevel@tonic-gate if (mtx->eMm_held != 0) { 16*7c478bd9Sstevel@tonic-gate fprintf(stderr, "%s:eMmutex_enter(%p): already locked: %d\n", 17*7c478bd9Sstevel@tonic-gate mtx->eMm_owner, mtx, mtx->eMm_held); 18*7c478bd9Sstevel@tonic-gate abort(); 19*7c478bd9Sstevel@tonic-gate } 20*7c478bd9Sstevel@tonic-gate mtx->eMm_held++; 21*7c478bd9Sstevel@tonic-gate mtx->eMm_heldin = file; 22*7c478bd9Sstevel@tonic-gate mtx->eMm_heldat = line; 23*7c478bd9Sstevel@tonic-gate } 24*7c478bd9Sstevel@tonic-gate 25*7c478bd9Sstevel@tonic-gate 26*7c478bd9Sstevel@tonic-gate void eMmutex_exit(mtx) 27*7c478bd9Sstevel@tonic-gate eMmutex_t *mtx; 28*7c478bd9Sstevel@tonic-gate { 29*7c478bd9Sstevel@tonic-gate if (mtx->eMm_magic != EMM_MAGIC) { 30*7c478bd9Sstevel@tonic-gate fprintf(stderr, "%s:eMmutex_exit(%p): bad magic: %#x\n", 31*7c478bd9Sstevel@tonic-gate mtx->eMm_owner, mtx, mtx->eMm_magic); 32*7c478bd9Sstevel@tonic-gate abort(); 33*7c478bd9Sstevel@tonic-gate } 34*7c478bd9Sstevel@tonic-gate if (mtx->eMm_held != 1) { 35*7c478bd9Sstevel@tonic-gate fprintf(stderr, "%s:eMmutex_exit(%p): not locked: %d\n", 36*7c478bd9Sstevel@tonic-gate mtx->eMm_owner, mtx, mtx->eMm_held); 37*7c478bd9Sstevel@tonic-gate abort(); 38*7c478bd9Sstevel@tonic-gate } 39*7c478bd9Sstevel@tonic-gate mtx->eMm_held--; 40*7c478bd9Sstevel@tonic-gate mtx->eMm_heldin = NULL; 41*7c478bd9Sstevel@tonic-gate mtx->eMm_heldat = 0; 42*7c478bd9Sstevel@tonic-gate } 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate 45*7c478bd9Sstevel@tonic-gate void eMmutex_init(mtx, who) 46*7c478bd9Sstevel@tonic-gate eMmutex_t *mtx; 47*7c478bd9Sstevel@tonic-gate char *who; 48*7c478bd9Sstevel@tonic-gate { 49*7c478bd9Sstevel@tonic-gate if (mtx->eMm_magic == EMM_MAGIC) { /* safe bet ? */ 50*7c478bd9Sstevel@tonic-gate fprintf(stderr, 51*7c478bd9Sstevel@tonic-gate "%s:eMmutex_init(%p): already initialised?: %#x\n", 52*7c478bd9Sstevel@tonic-gate mtx->eMm_owner, mtx, mtx->eMm_magic); 53*7c478bd9Sstevel@tonic-gate abort(); 54*7c478bd9Sstevel@tonic-gate } 55*7c478bd9Sstevel@tonic-gate mtx->eMm_magic = EMM_MAGIC; 56*7c478bd9Sstevel@tonic-gate mtx->eMm_held = 0; 57*7c478bd9Sstevel@tonic-gate if (who != NULL) 58*7c478bd9Sstevel@tonic-gate mtx->eMm_owner = strdup(who); 59*7c478bd9Sstevel@tonic-gate else 60*7c478bd9Sstevel@tonic-gate mtx->eMm_owner = NULL; 61*7c478bd9Sstevel@tonic-gate } 62*7c478bd9Sstevel@tonic-gate 63*7c478bd9Sstevel@tonic-gate 64*7c478bd9Sstevel@tonic-gate void eMmutex_destroy(mtx) 65*7c478bd9Sstevel@tonic-gate eMmutex_t *mtx; 66*7c478bd9Sstevel@tonic-gate { 67*7c478bd9Sstevel@tonic-gate if (mtx->eMm_magic != EMM_MAGIC) { 68*7c478bd9Sstevel@tonic-gate fprintf(stderr, "%s:eMmutex_destroy(%p): bad magic: %#x\n", 69*7c478bd9Sstevel@tonic-gate mtx->eMm_owner, mtx, mtx->eMm_magic); 70*7c478bd9Sstevel@tonic-gate abort(); 71*7c478bd9Sstevel@tonic-gate } 72*7c478bd9Sstevel@tonic-gate if (mtx->eMm_held != 0) { 73*7c478bd9Sstevel@tonic-gate fprintf(stderr, "%s:eMmutex_enter(%p): still locked: %d\n", 74*7c478bd9Sstevel@tonic-gate mtx->eMm_owner, mtx, mtx->eMm_held); 75*7c478bd9Sstevel@tonic-gate abort(); 76*7c478bd9Sstevel@tonic-gate } 77*7c478bd9Sstevel@tonic-gate memset(mtx, 0xa5, sizeof(*mtx)); 78*7c478bd9Sstevel@tonic-gate } 79