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authorJonathan Kew <jfkthame@googlemail.com>2015-05-05 06:26:51 +0000
committerJonathan Kew <jfkthame@googlemail.com>2015-05-05 06:26:51 +0000
commit810ad32eab25ed0ead53f13d7950d87abf457fb7 (patch)
tree67617ebffb15d4554d0a5649c86863e092adecef /Build
parent05b743e123cb6ce35e705f25cd41c340fbab04cd (diff)
[xetexdir/XeTeX_ext.c] use non-locking variant of getc() to read input files more efficiently.
git-svn-id: svn://tug.org/texlive/trunk@37196 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build')
-rw-r--r--Build/source/texk/web2c/xetexdir/ChangeLog4
-rw-r--r--Build/source/texk/web2c/xetexdir/XeTeX_ext.c50
2 files changed, 34 insertions, 20 deletions
diff --git a/Build/source/texk/web2c/xetexdir/ChangeLog b/Build/source/texk/web2c/xetexdir/ChangeLog
index ec767880e07..0da0059817e 100644
--- a/Build/source/texk/web2c/xetexdir/ChangeLog
+++ b/Build/source/texk/web2c/xetexdir/ChangeLog
@@ -1,3 +1,7 @@
+2015-05-03 Jonathan Kew <jfkthame@gmail.com>
+
+ * XeTeX_ext.c: use non-locking getc() for faster file reading.
+
2015-03-27 Peter Breitenlohner <peb@mppmu.mpg.de>
* image/mfileio.[ch]: Use mfgets() parameters as for fgets().
diff --git a/Build/source/texk/web2c/xetexdir/XeTeX_ext.c b/Build/source/texk/web2c/xetexdir/XeTeX_ext.c
index 7a19c011650..7e16fb169da 100644
--- a/Build/source/texk/web2c/xetexdir/XeTeX_ext.c
+++ b/Build/source/texk/web2c/xetexdir/XeTeX_ext.c
@@ -88,6 +88,16 @@ authorization from the copyright holders.
#include <assert.h>
+/* for reading input files, we don't need the default locking routines
+ as xetex is a single-threaded program */
+#ifdef WIN32
+#define GETC(f) _getc_nolock(f)
+#define UNGETC(c,f) _ungetc_nolock(c,f)
+#else
+#define GETC(f) getc_unlocked(f)
+#define UNGETC(c,f) ungetc(c,f)
+#endif
+
/* tables/values used in UTF-8 interpretation -
code is based on ConvertUTF.[ch] sample code
published by the Unicode consortium */
@@ -342,17 +352,17 @@ static uint32_t *utf32Buf = NULL;
byteBuffer = (char*) xmalloc(bufsize + 1);
/* Recognize either LF or CR as a line terminator; skip initial LF if prev line ended with CR. */
- i = getc(f->f);
+ i = GETC(f->f);
if (f->skipNextLF) {
f->skipNextLF = 0;
if (i == '\n')
- i = getc(f->f);
+ i = GETC(f->f);
}
if (i != EOF && i != '\n' && i != '\r')
byteBuffer[bytesRead++] = i;
if (i != EOF && i != '\n' && i != '\r')
- while (bytesRead < bufsize && (i = getc(f->f)) != EOF && i != '\n' && i != '\r')
+ while (bytesRead < bufsize && (i = GETC(f->f)) != EOF && i != '\n' && i != '\r')
byteBuffer[bytesRead++] = i;
if (i == EOF && errno != EINTR && bytesRead == 0)
@@ -2530,8 +2540,8 @@ u_open_in(unicodefile* f, integer filefmt, const_string fopen_mode, integer mode
int B1, B2;
if (mode == AUTO) {
/* sniff encoding form */
- B1 = getc((*f)->f);
- B2 = getc((*f)->f);
+ B1 = GETC((*f)->f);
+ B2 = GETC((*f)->f);
if (B1 == 0xfe && B2 == 0xff)
mode = UTF16BE;
else if (B2 == 0xfe && B1 == 0xff)
@@ -2543,7 +2553,7 @@ u_open_in(unicodefile* f, integer filefmt, const_string fopen_mode, integer mode
mode = UTF16LE;
rewind((*f)->f);
} else if (B1 == 0xef && B2 == 0xbb) {
- int B3 = getc((*f)->f);
+ int B3 = GETC((*f)->f);
if (B3 == 0xbf)
mode = UTF8;
}
@@ -2696,17 +2706,17 @@ get_uni_c(UFILE* f)
switch (f->encodingMode) {
case UTF8:
- c = rval = getc(f->f);
+ c = rval = GETC(f->f);
if (rval != EOF) {
uint16_t extraBytes = bytesFromUTF8[rval];
switch (extraBytes) { /* note: code falls through cases! */
- case 3: c = getc(f->f);
+ case 3: c = GETC(f->f);
if (c < 0x80 || c >= 0xc0) goto bad_utf8;
rval <<= 6; rval += c;
- case 2: c = getc(f->f);
+ case 2: c = GETC(f->f);
if (c < 0x80 || c >= 0xc0) goto bad_utf8;
rval <<= 6; rval += c;
- case 1: c = getc(f->f);
+ case 1: c = GETC(f->f);
if (c < 0x80 || c >= 0xc0) goto bad_utf8;
rval <<= 6; rval += c;
case 0:
@@ -2714,7 +2724,7 @@ get_uni_c(UFILE* f)
bad_utf8:
if (c != EOF)
- ungetc(c, f->f);
+ UNGETC(c, f->f);
case 5:
case 4:
badutf8warning();
@@ -2725,14 +2735,14 @@ get_uni_c(UFILE* f)
break;
case UTF16BE:
- rval = getc(f->f);
+ rval = GETC(f->f);
if (rval != EOF) {
rval <<= 8;
- rval += getc(f->f);
+ rval += GETC(f->f);
if (rval >= 0xd800 && rval <= 0xdbff) {
- int lo = getc(f->f);
+ int lo = GETC(f->f);
lo <<= 8;
- lo += getc(f->f);
+ lo += GETC(f->f);
if (lo >= 0xdc00 && lo <= 0xdfff)
rval = 0x10000 + (rval - 0xd800) * 0x400 + (lo - 0xdc00);
else {
@@ -2745,12 +2755,12 @@ get_uni_c(UFILE* f)
break;
case UTF16LE:
- rval = getc(f->f);
+ rval = GETC(f->f);
if (rval != EOF) {
- rval += (getc(f->f) << 8);
+ rval += (GETC(f->f) << 8);
if (rval >= 0xd800 && rval <= 0xdbff) {
- int lo = getc(f->f);
- lo += (getc(f->f) << 8);
+ int lo = GETC(f->f);
+ lo += (GETC(f->f) << 8);
if (lo >= 0xdc00 && lo <= 0xdfff)
rval = 0x10000 + (rval - 0xd800) * 0x400 + (lo - 0xdc00);
else {
@@ -2789,7 +2799,7 @@ get_uni_c(UFILE* f)
#endif
case RAW:
- rval = getc(f->f);
+ rval = GETC(f->f);
break;
default: