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Revision 3ebbd00cf3c5a7c6f90e2fed8adaf0c5145fb4ac authored by Jim Hill on 31 May 2015, 18:16:45 UTC, committed by Junio C Hamano on 10 August 2015, 19:51:13 UTC 
strbuf_read(): skip unnecessary strbuf_grow() at eof
 
The loop in strbuf_read() uses xread() repeatedly while extending
the strbuf until the call returns zero.  If the buffer is
sufficiently large to begin with, this results in xread()
returning the remainder of the file to the end (returning
non-zero), the loop extending the strbuf, and then making another
call to xread() to have it return zero.

By using read_in_full(), we can tell when the read reached the end
of file: when it returns less than was requested, it's eof.  This
way we can avoid an extra iteration that allocates an extra 8kB
that is never used.

Signed-off-by: Jim Hill <gjthill@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 282616c
Raw File
log-tree.h 
#ifndef LOG_TREE_H
#define LOG_TREE_H

#include "revision.h"

struct log_info {
	struct commit *commit, *parent;
};

int parse_decorate_color_config(const char *var, const int ofs, const char *value);
void init_log_tree_opt(struct rev_info *);
int log_tree_diff_flush(struct rev_info *);
int log_tree_commit(struct rev_info *, struct commit *);
int log_tree_opt_parse(struct rev_info *, const char **, int);
void show_log(struct rev_info *opt);
void format_decorations(struct strbuf *sb, const struct commit *commit, int use_color);
void show_decorations(struct rev_info *opt, struct commit *commit);
void log_write_email_headers(struct rev_info *opt, struct commit *commit,
			     const char **subject_p,
			     const char **extra_headers_p,
			     int *need_8bit_cte_p);
void load_ref_decorations(int flags);

#define FORMAT_PATCH_NAME_MAX 64
void fmt_output_commit(struct strbuf *, struct commit *, struct rev_info *);
void fmt_output_subject(struct strbuf *, const char *subject, struct rev_info *);

#endif
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