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48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
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#ifndef COSMOPOLITAN_LIBC_THREAD_FREEBSD_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_THREAD_FREEBSD_INTERNAL_H_
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#include "libc/bits/asmflag.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/errno.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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/**
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* @fileoverview FreeBSD Threading
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*
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* @note even though FreeBSD uses a 64-bit type for thread IDs the
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* maximum legal range is PID_MAX + 2 (100001) through INT_MAX
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*/
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struct rtprio {
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uint16_t type; /* scheduling class */
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uint16_t prio;
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};
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struct thr_param {
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void (*start_func)(void *);
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void *arg;
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char *stack_base;
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uint64_t stack_size;
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char *tls_base;
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uint64_t tls_size;
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int64_t *child_tid;
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int64_t *parent_tid;
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int32_t flags;
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struct rtprio *rtp;
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};
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static inline int thr_new(struct thr_param *param, int param_size) {
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bool failed;
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long ax, di, si;
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asm volatile(CFLAG_ASM("syscall")
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: CFLAG_CONSTRAINT(failed), "=a"(ax), "=D"(di), "=S"(si)
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: "1"(455), "2"(param), "3"(param_size)
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: "rcx", "rdx", "r8", "r9", "r10", "r11", "memory");
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if (failed) ax = -ax;
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return ax;
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}
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_THREAD_FREEBSD_INTERNAL_H_ */
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