From: danielk1977 <danielk1977@noemail.net>
Date: Tue, 29 Jul 2008 11:25:14 +0000 (+0000)
Subject: Use a macro to make sure that the calls to sqlite3Utf8Read() from MemTranslate()... 
X-Git-Tag: version-3.6.10~685
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ad76a81ed5c2e1f49be229126e8680bf16555aa0;p=thirdparty%2Fsqlite.git

Use a macro to make sure that the calls to sqlite3Utf8Read() from MemTranslate() are inlined. This speeds up converting from utf8 to utf16. (CVS 5492)

FossilOrigin-Name: 78a623bbb17e35bcb902d3ea1d0b963570588d2d
---

diff --git a/manifest b/manifest
index 2d014acf02..54d331008c 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\sa\smissing\s"finish_test"\sto\sthe\send\sof\smisc5.test.\s(CVS\s5491)
-D 2008-07-29T10:26:45
+C Use\sa\smacro\sto\smake\ssure\sthat\sthe\scalls\sto\ssqlite3Utf8Read()\sfrom\sMemTranslate()\sare\sinlined.\sThis\sspeeds\sup\sconverting\sfrom\sutf8\sto\sutf16.\s(CVS\s5492)
+D 2008-07-29T11:25:14
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in bbb62eecc851379aef5a48a1bf8787eb13e6ec06
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -180,7 +180,7 @@ F src/test_thread.c e297dd41db0b249646e69f97d36ec13e56e8b730
 F src/tokenize.c bfdc945527a4645bf54c8bf34d1f18c019b37117
 F src/trigger.c b61aaf7bff8e3763b234dbf46a1a64fb88a34e64
 F src/update.c 79b77a3cc8ed5f8903a7f37055fcedd69388dcae
-F src/utf.c 8d52f620a7153d90b058502124fe51d821fcdf57
+F src/utf.c a7004436a6ef2aee012ace93de274dd0f3c7624e
 F src/util.c afe659ccc05d1f8af9e8631dabfec3ee3a7144af
 F src/vacuum.c ef342828002debc97514617af3424aea8ef8522c
 F src/vdbe.c 78171c3fbaff3f8880012ef5eda9f862fdca936c
@@ -612,7 +612,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 1dbced29de5f59ba2ebf877edcadf171540374d1
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P 9ebee8401b68a2bcd49dc750ac394258d554b499
-R 16dd0f8852f68ca7931e8bea036d6a08
+P 89216b166924e831dd6264dd60f8da42cef7deee
+R 511e29293a7e963d56be0131fe0a71e2
 U danielk1977
-Z 00abcc948a05a4a671714b20c5fdfad3
+Z f38220753c874edc97630b57fe1c90aa
diff --git a/manifest.uuid b/manifest.uuid
index 024da44329..76cdf90479 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-89216b166924e831dd6264dd60f8da42cef7deee
\ No newline at end of file
+78a623bbb17e35bcb902d3ea1d0b963570588d2d
\ No newline at end of file
diff --git a/src/utf.c b/src/utf.c
index e4aa6e433a..8711a4c390 100644
--- a/src/utf.c
+++ b/src/utf.c
@@ -12,7 +12,7 @@
 ** This file contains routines used to translate between UTF-8, 
 ** UTF-16, UTF-16BE, and UTF-16LE.
 **
-** $Id: utf.c,v 1.62 2008/06/27 18:59:45 mihailim Exp $
+** $Id: utf.c,v 1.63 2008/07/29 11:25:14 danielk1977 Exp $
 **
 ** Notes on UTF-8:
 **
@@ -154,27 +154,31 @@ static const unsigned char sqlite3UtfTrans1[] = {
 **     for unicode values 0x80 and greater.  It do not change over-length
 **     encodings to 0xfffd as some systems recommend.
 */
+#define READ_UTF8(zIn, zTerm, c)                           \
+  c = *(zIn++);                                            \
+  if( c>=0xc0 ){                                           \
+    c = sqlite3UtfTrans1[c-0xc0];                          \
+    while( zIn!=zTerm && (*zIn & 0xc0)==0x80 ){            \
+      c = (c<<6) + (0x3f & *(zIn++));                      \
+    }                                                      \
+    if( c<0x80                                             \
+        || (c&0xFFFFF800)==0xD800                          \
+        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }        \
+  }
 int sqlite3Utf8Read(
   const unsigned char *z,         /* First byte of UTF-8 character */
   const unsigned char *zTerm,     /* Pretend this byte is 0x00 */
   const unsigned char **pzNext    /* Write first byte past UTF-8 char here */
 ){
-  int c = *(z++);
-  if( c>=0xc0 ){
-    c = sqlite3UtfTrans1[c-0xc0];
-    while( z!=zTerm && (*z & 0xc0)==0x80 ){
-      c = (c<<6) + (0x3f & *(z++));
-    }
-    if( c<0x80
-        || (c&0xFFFFF800)==0xD800
-        || (c&0xFFFFFFFE)==0xFFFE ){  c = 0xFFFD; }
-  }
+  int c;
+  READ_UTF8(z, zTerm, c);
   *pzNext = z;
   return c;
 }
 
 
 
+
 /*
 ** If the TRANSLATE_TRACE macro is defined, the value of each Mem is
 ** printed on stderr on the way into and out of sqlite3VdbeMemTranslate().
@@ -268,14 +272,16 @@ int sqlite3VdbeMemTranslate(Mem *pMem, u8 desiredEnc){
     if( desiredEnc==SQLITE_UTF16LE ){
       /* UTF-8 -> UTF-16 Little-endian */
       while( zIn<zTerm ){
-        c = sqlite3Utf8Read(zIn, zTerm, (const u8**)&zIn);
+        /* c = sqlite3Utf8Read(zIn, zTerm, (const u8**)&zIn); */
+        READ_UTF8(zIn, zTerm, c);
         WRITE_UTF16LE(z, c);
       }
     }else{
       assert( desiredEnc==SQLITE_UTF16BE );
       /* UTF-8 -> UTF-16 Big-endian */
       while( zIn<zTerm ){
-        c = sqlite3Utf8Read(zIn, zTerm, (const u8**)&zIn);
+        /* c = sqlite3Utf8Read(zIn, zTerm, (const u8**)&zIn); */
+        READ_UTF8(zIn, zTerm, c);
         WRITE_UTF16BE(z, c);
       }
     }