NAME

ck_pr_dec_ptr, ck_pr_dec_ptr_zero, ck_pr_dec_ptr_is_zero, ck_pr_dec_double, ck_pr_dec_double_zero, ck_pr_dec_double_is_zero, ck_pr_dec_char, ck_pr_dec_char_zero, ck_pr_dec_char_is_zero, ck_pr_dec_uint, ck_pr_dec_uint_zero, ck_pr_dec_char_is_zero, ck_pr_dec_int, ck_pr_dec_int_zero, ck_pr_dec_int_is_zero, ck_pr_dec_64, ck_pr_dec_64_zero, ck_pr_dec_64_is_zero, ck_pr_dec_32, ck_pr_dec_32_zero, ck_pr_dec_32_is_zero, ck_pr_dec_16, ck_pr_dec_16_zero, ck_pr_dec_32_is_zero, ck_pr_dec_8, ck_pr_dec_8_zero, ck_pr_dec_8_is_zero — atomic decrement operations

LIBRARY

Concurrency Kit (libck, -lck)

SYNOPSIS

#include <ck_pr.h>

void
ck_pr_dec_ptr(void *target);

void
ck_pr_dec_ptr_zero(void *target, bool *z);

bool
ck_pr_dec_ptr_is_zero(void *target);

void
ck_pr_dec_double(double *target);

void
ck_pr_dec_double_zero(double *target, bool *z);

bool
ck_pr_dec_double_is_zero(double *target);

void
ck_pr_dec_char(char *target);

void
ck_pr_dec_char_zero(char *target, bool *z);

bool
ck_pr_dec_char_is_zero(char *target);

void
ck_pr_dec_uint(unsigned int *target);

void
ck_pr_dec_uint_zero(unsigned int *target, bool *z);

bool
ck_pr_dec_uint_is_zero(unsigned int *target);

void
ck_pr_dec_int(int *target);

void
ck_pr_dec_int_zero(int *target, bool *z);

bool
ck_pr_dec_int_is_zero(int *target);

void
ck_pr_dec_64(uint64_t *target);

void
ck_pr_dec_64_zero(uint64_t *target, bool *z);

bool
ck_pr_dec_64_is_zero(uint64_t *target);

void
ck_pr_dec_32(uint32_t *target);

void
ck_pr_dec_32_zero(uint32_t *target, bool *z);

bool
ck_pr_dec_32_is_zero(uint32_t *target);

void
ck_pr_dec_16(uint16_t *target);

void
ck_pr_dec_16_zero(uint16_t *target, bool *z);

bool
ck_pr_dec_16_is_zero(uint16_t *target);

void
ck_pr_dec_8(uint8_t *target);

void
ck_pr_dec_8_zero(uint8_t *target, bool *z);

bool
ck_pr_dec_8_is_zero(uint8_t *target);

DESCRIPTION

The ck_pr_dec(3) family of functions atomically decrement the value pointed to by target.

RETURN VALUES

The ck_pr_dec_zero family of functions set the value pointed to by z to true if the result of the decrement operation was 0. They set the value pointed to by z to false otherwise. The ck_pr_dec_is_zero family of function return true if the result of the decrement operation was 0 and false otherwise.

SEE ALSO

ck_pr_fence_load(3), ck_pr_fence_load_depends(3), ck_pr_fence_store(3), ck_pr_fence_memory(3), ck_pr_load(3), ck_pr_store(3), ck_pr_fas(3), ck_pr_faa(3), ck_pr_inc(3), ck_pr_neg(3), ck_pr_not(3), ck_pr_add(3), ck_pr_sub(3), ck_pr_and(3), ck_pr_or(3), ck_pr_xor(3), ck_pr_cas(3), ck_pr_btc(3), ck_pr_bts(3), ck_pr_btr(3)

Additional information available at http://concurrencykit.org/