Make improvements to locking

This change makes pthread_mutex_lock() as fast as _spinlock() by
default. Thread instability issues on NetBSD have been resolved.
Improvements made to gdtoa thread code. Crash reporting will now
synchronize between threads in a slightly better way.
This commit is contained in:
Justine Tunney 2022-06-19 01:13:03 -07:00
parent 25041b8026
commit d5312b60f7
60 changed files with 890 additions and 629 deletions

View file

@ -16,19 +16,19 @@ COSMOPOLITAN_C_START_
*/
typedef struct FILE {
uint8_t bufmode; /* 0x00 _IOFBF, etc. (ignored if fd=-1) */
bool noclose; /* 0x01 for fake dup() todo delete! */
uint32_t iomode; /* 0x04 O_RDONLY, etc. (ignored if fd=-1) */
int32_t state; /* 0x08 0=OK, -1=EOF, >0=errno */
int fd; /* 0x0c ≥0=fd, -1=closed|buffer */
uint32_t beg; /* 0x10 */
uint32_t end; /* 0x14 */
char *buf; /* 0x18 */
uint32_t size; /* 0x20 */
uint32_t nofree; /* 0x24 */
int pid; /* 0x28 */
char *getln;
pthread_mutex_t lock;
uint8_t bufmode; /* 0x00 _IOFBF, etc. (ignored if fd=-1) */
bool noclose; /* 0x01 for fake dup() todo delete! */
uint32_t iomode; /* 0x04 O_RDONLY, etc. (ignored if fd=-1) */
int32_t state; /* 0x08 0=OK, -1=EOF, >0=errno */
int fd; /* 0x0c ≥0=fd, -1=closed|buffer */
uint32_t beg; /* 0x10 */
uint32_t end; /* 0x14 */
char *buf; /* 0x18 */
uint32_t size; /* 0x20 */
uint32_t nofree; /* 0x24 */
int pid; /* 0x28 */
char *getln; /* 0x30 */
pthread_mutex_t lock; /* 0x38 */
} FILE;
extern FILE *stdin;