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Alternative implementation of ".selecttrace" and ".wheretrace" that uses

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a test-control rather than global variables.

FossilOrigin-Name: d36d6f2923a2393c751c0ac7634433453be20df7567fd914e57cbb1ae15f68b2
This commit is contained in:
drh
2020-12-04 01:17:57 +00:00
parent 384f5c26f4
commit c0622a4d03
11 changed files with 91 additions and 93 deletions
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40
src/shell.c.in
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@@ -2881,31 +2881,17 @@ static void explain_data_delete(ShellState *p){
/*
** Disable and restore .wheretrace and .selecttrace settings.
*/
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
extern unsigned int sqlite3_unsupported_selecttrace;
static int savedSelectTrace;
#endif
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
extern int sqlite3WhereTrace;
static int savedWhereTrace;
#endif
static unsigned int savedSelectTrace;
static unsigned int savedWhereTrace;
static void disable_debug_trace_modes(void){
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
savedSelectTrace = sqlite3_unsupported_selecttrace;
sqlite3_unsupported_selecttrace = 0;
#endif
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
savedWhereTrace = sqlite3WhereTrace;
sqlite3WhereTrace = 0;
#endif
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 0, &savedSelectTrace);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 1, 0);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 2, &savedWhereTrace);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 3, 0);
}
static void restore_debug_trace_modes(void){
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
sqlite3_unsupported_selecttrace = savedSelectTrace;
#endif
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
sqlite3WhereTrace = savedWhereTrace;
#endif
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 1, &savedSelectTrace);
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 3, &savedWhereTrace);
}
/* Create the TEMP table used to store parameter bindings */
@@ -9246,11 +9232,10 @@ static int do_meta_command(char *zLine, ShellState *p){
}
}else
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_SELECTTRACE)
if( c=='s' && n==11 && strncmp(azArg[0], "selecttrace", n)==0 ){
sqlite3_unsupported_selecttrace = nArg>=2 ? (int)integerValue(azArg[1]) : 0xffff;
unsigned int x = nArg>=2 ? (int)integerValue(azArg[1]) : 0xffffffff;
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 1, &x);
}else
#endif
#if defined(SQLITE_ENABLE_SESSION)
if( c=='s' && strncmp(azArg[0],"session",n)==0 && n>=3 ){
@@ -10305,11 +10290,10 @@ static int do_meta_command(char *zLine, ShellState *p){
}
}else
#if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){
sqlite3WhereTrace = nArg>=2 ? booleanValue(azArg[1]) : 0xff;
unsigned int x = nArg>=2 ? (unsigned int)integerValue(azArg[1]) : 0xffffffff;
sqlite3_test_control(SQLITE_TESTCTRL_TRACEFLAGS, 3, &x);
}else
#endif
if( c=='w' && strncmp(azArg[0], "width", n)==0 ){
int j;