Instead of writing everything to a temporary buffer, and then using
fwrite() to have it fputc() one character at a time into the stdio
buffer, just use fprintf() directly to save a copy and write in
larger blocks.
Testing on Solaris on makedepend's own source files showed a
reduction in memcpy's from 4037 to 3108, and in _dowrite calls
in stdio from 1173 to 168, but no change in actual write calls
from stdio's buffer to the file.
Signed-off-by: Alan Coopersmith <alan.coopersm...@oracle.com>
---
pr.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/pr.c b/pr.c
index 9a49635..4744d56 100644
--- a/pr.c
+++ b/pr.c
@@ -108,7 +108,6 @@ pr(struct inclist *ip, const char *file, const char *base)
static int current_len;
register int len, i;
const char * quoted;
- char buf[ BUFSIZ ];
char quotebuf[ BUFSIZ ];
printed = TRUE;
@@ -116,15 +115,13 @@ pr(struct inclist *ip, const char *file, const char *base)
len = strlen(quoted)+1;
if (current_len + len > width || file != lastfile) {
lastfile = file;
- snprintf(buf, sizeof(buf), "\n%s%s%s: %s",
+ current_len = fprintf(stdout, "\n%s%s%s: %s",
objprefix, base, objsuffix, quoted);
- len = current_len = strlen(buf);
}
else {
- snprintf(buf, sizeof(buf), " %s", quoted);
+ fprintf(stdout, " %s", quoted);
current_len += len;
}
- fwrite(buf, len, 1, stdout);
/*
* If verbose is set, then print out what this file includes.
--
2.15.0
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