37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
#ifndef JEMALLOC_INTERNAL_BUF_WRITER_H
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#define JEMALLOC_INTERNAL_BUF_WRITER_H
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/*
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* Note: when using the buffered writer, cbopaque is passed to write_cb only
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* when the buffer is flushed. It would make a difference if cbopaque points
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* to something that's changing for each write_cb call, or something that
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* affects write_cb in a way dependent on the content of the output string.
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* However, the most typical usage case in practice is that cbopaque points to
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* some "option like" content for the write_cb, so it doesn't matter.
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*/
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typedef struct {
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void (*write_cb)(void *, const char *);
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void *cbopaque;
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char *buf;
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size_t buf_size;
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size_t buf_end;
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} buf_write_arg_t;
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JEMALLOC_ALWAYS_INLINE void
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buf_write_init(buf_write_arg_t *arg, void (*write_cb)(void *, const char *),
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void *cbopaque, char *buf, size_t buf_len) {
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arg->write_cb = write_cb;
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arg->cbopaque = cbopaque;
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assert(buf != NULL);
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arg->buf = buf;
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assert(buf_len >= 2);
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arg->buf_size = buf_len - 1; /* Accommodating '\0' at the end. */
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arg->buf_end = 0;
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}
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void buf_write_flush(buf_write_arg_t *arg);
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void buf_write_cb(void *buf_write_arg, const char *s);
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#endif /* JEMALLOC_INTERNAL_BUF_WRITER_H */
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