mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 12:03:41 +00:00
b41f91c658
The cosmopolitan command interpreter now has 13 builtin commands, variable support, support for ; / && / || syntax, asynchronous support, and plenty of unit tests with bug fixes. This change fixes a bug in posix_spawn() with null envp arg. strace logging now uses atomic writes for scatter functions. Breaking change renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use the new token bucket algorithm. WIN32 affinity masks now inherit across fork() and execve().
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
#ifndef COSMOPOLITAN_LIBC_SOCK_STRUCT_CMSGHDR_H_
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#define COSMOPOLITAN_LIBC_SOCK_STRUCT_CMSGHDR_H_
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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#define CMSG_DATA(cmsg) ((unsigned char *)(((struct cmsghdr *)(cmsg)) + 1))
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#define CMSG_FIRSTHDR(mhdr) \
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((size_t)(mhdr)->msg_controllen >= sizeof(struct cmsghdr) \
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? (struct cmsghdr *)(mhdr)->msg_control \
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: (struct cmsghdr *)0)
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#define CMSG_NXTHDR(mhdr, cmsg) \
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((cmsg)->cmsg_len < sizeof(struct cmsghdr) || \
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__CMSG_LEN(cmsg) + sizeof(struct cmsghdr) >= \
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__MHDR_END(mhdr) - (unsigned char *)(cmsg) \
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? 0 \
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: (struct cmsghdr *)__CMSG_NEXT(cmsg))
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#define CMSG_ALIGN(len) \
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(((len) + sizeof(size_t) - 1) & (size_t) ~(sizeof(size_t) - 1))
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#define CMSG_SPACE(len) (CMSG_ALIGN(len) + CMSG_ALIGN(sizeof(struct cmsghdr)))
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#define CMSG_LEN(len) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (len))
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#define __CMSG_LEN(cmsg) \
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(((cmsg)->cmsg_len + sizeof(long) - 1) & ~(long)(sizeof(long) - 1))
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#define __CMSG_NEXT(cmsg) ((unsigned char *)(cmsg) + __CMSG_LEN(cmsg))
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#define __MHDR_END(mhdr) \
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((unsigned char *)(mhdr)->msg_control + (mhdr)->msg_controllen)
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struct cmsghdr { /* linux abi */
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uint32_t cmsg_len;
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uint32_t __pad1;
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int32_t cmsg_level;
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int32_t cmsg_type;
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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_SOCK_STRUCT_CMSGHDR_H_ */
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