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https://github.com/jart/cosmopolitan.git
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a359de7893
This changes *NSYNC to allocate waiters on the stack so our locks don't need to depend on dynamic memory. This make our runtiem simpler, and it also fixes bugs with thread cancellation support.
41 lines
1 KiB
C
41 lines
1 KiB
C
#ifndef COSMOPOLITAN_LIBC_STDIO_INTERNAL_H_
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#define COSMOPOLITAN_LIBC_STDIO_INTERNAL_H_
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#include "libc/stdio/stdio.h"
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#include "libc/thread/thread.h"
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#define PUSHBACK 12
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct FILE {
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uint8_t bufmode; /* _IOFBF, etc. (ignored if fd=-1) */
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char noclose; /* for fake dup() todo delete! */
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char dynamic; /* did malloc() create this object? */
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uint32_t iomode; /* O_RDONLY, etc. (ignored if fd=-1) */
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int32_t state; /* 0=OK, -1=EOF, >0=errno */
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int fd; /* ≥0=fd, -1=closed|buffer */
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uint32_t beg;
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uint32_t end;
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char *buf;
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uint32_t size;
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uint32_t nofree;
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int pid;
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char *getln;
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pthread_mutex_t lock;
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struct FILE *next;
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char mem[BUFSIZ];
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};
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extern uint64_t g_rando;
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int __fflush_impl(FILE *);
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int __fflush_register(FILE *);
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void __fflush_unregister(FILE *);
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bool __stdio_isok(FILE *);
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FILE *__stdio_alloc(void);
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void __stdio_free(FILE *);
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_STDIO_INTERNAL_H_ */
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