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Overview
| Comment: | Add the SQLITE_TESTCTRL_BYTEORDER test control to interrogate SQLite's notion of the processor byte order and whether the byte order is known at compile-time or determined at run-time. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
9c6961967ae00e563ebe2859eaf2639a |
| User & Date: | drh 2014-04-18 00:06:02 |
Context
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2014-04-18
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| 00:49 | Add the SQLITE_RUNTIME_BYTEORDER compile-time option to force SQLite to check the processor byte-order at run-time. Add additional compile-time byte order checks for ARM, PPC, and SPARC. (check-in: 2c536387 user: drh tags: trunk) | |
| 00:08 | Preliminary changes to support building VSIX packages for Windows Phone 8.1. (check-in: a1b2f28b user: mistachkin tags: vsixWinPhone81) | |
| 00:06 | Add the SQLITE_TESTCTRL_BYTEORDER test control to interrogate SQLite's notion of the processor byte order and whether the byte order is known at compile-time or determined at run-time. (check-in: 9c696196 user: drh tags: trunk) | |
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2014-04-14
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| 19:48 | Make sure the undocumented sqlite_rename_parent() function does not crash even if it is invoked with NULL arguments. Ticket [264b970c4379fd4b94] (check-in: c6fa8d0d user: drh tags: trunk) | |
Changes
Changes to src/main.c.
3200 3200 ** } 3201 3201 */ 3202 3202 case SQLITE_TESTCTRL_ALWAYS: { 3203 3203 int x = va_arg(ap,int); 3204 3204 rc = ALWAYS(x); 3205 3205 break; 3206 3206 } 3207 + 3208 + /* 3209 + ** sqlite3_test_control(SQLITE_TESTCTRL_BYTEORDER); 3210 + ** 3211 + ** The integer returned reveals the byte-order of the computer on which 3212 + ** SQLite is running: 3213 + ** 3214 + ** 1 big-endian, determined at run-time 3215 + ** 10 little-endian, determined at run-time 3216 + ** 432101 big-endian, determined at compile-time 3217 + ** 123410 little-endian, determined at compile-time 3218 + */ 3219 + case SQLITE_TESTCTRL_BYTEORDER: { 3220 + rc = SQLITE_BYTEORDER*100 + SQLITE_LITTLEENDIAN*10 + SQLITE_BIGENDIAN; 3221 + break; 3222 + } 3207 3223 3208 3224 /* sqlite3_test_control(SQLITE_TESTCTRL_RESERVE, sqlite3 *db, int N) 3209 3225 ** 3210 3226 ** Set the nReserve size to N for the main database on the database 3211 3227 ** connection db. 3212 3228 */ 3213 3229 case SQLITE_TESTCTRL_RESERVE: {
Changes to src/shell.c.
3023 3023 { "pending_byte", SQLITE_TESTCTRL_PENDING_BYTE }, 3024 3024 { "assert", SQLITE_TESTCTRL_ASSERT }, 3025 3025 { "always", SQLITE_TESTCTRL_ALWAYS }, 3026 3026 { "reserve", SQLITE_TESTCTRL_RESERVE }, 3027 3027 { "optimizations", SQLITE_TESTCTRL_OPTIMIZATIONS }, 3028 3028 { "iskeyword", SQLITE_TESTCTRL_ISKEYWORD }, 3029 3029 { "scratchmalloc", SQLITE_TESTCTRL_SCRATCHMALLOC }, 3030 + { "byteorder", SQLITE_TESTCTRL_BYTEORDER }, 3030 3031 }; 3031 3032 int testctrl = -1; 3032 3033 int rc = 0; 3033 3034 int i, n; 3034 3035 open_db(p, 0); 3035 3036 3036 3037 /* convert testctrl text option to value. allow any unique prefix ................................................................................ 3063 3064 } else { 3064 3065 fprintf(stderr,"Error: testctrl %s takes a single int option\n", 3065 3066 azArg[1]); 3066 3067 } 3067 3068 break; 3068 3069 3069 3070 /* sqlite3_test_control(int) */ 3070 - case SQLITE_TESTCTRL_PRNG_SAVE: 3071 - case SQLITE_TESTCTRL_PRNG_RESTORE: 3071 + case SQLITE_TESTCTRL_PRNG_SAVE: 3072 + case SQLITE_TESTCTRL_PRNG_RESTORE: 3072 3073 case SQLITE_TESTCTRL_PRNG_RESET: 3074 + case SQLITE_TESTCTRL_BYTEORDER: 3073 3075 if( nArg==2 ){ 3074 3076 rc = sqlite3_test_control(testctrl); 3075 3077 fprintf(p->out, "%d (0x%08x)\n", rc, rc); 3076 3078 } else { 3077 3079 fprintf(stderr,"Error: testctrl %s takes no options\n", azArg[1]); 3078 3080 } 3079 3081 break;
Changes to src/sqlite.h.in.
6114 6114 #define SQLITE_TESTCTRL_OPTIMIZATIONS 15 6115 6115 #define SQLITE_TESTCTRL_ISKEYWORD 16 6116 6116 #define SQLITE_TESTCTRL_SCRATCHMALLOC 17 6117 6117 #define SQLITE_TESTCTRL_LOCALTIME_FAULT 18 6118 6118 #define SQLITE_TESTCTRL_EXPLAIN_STMT 19 6119 6119 #define SQLITE_TESTCTRL_NEVER_CORRUPT 20 6120 6120 #define SQLITE_TESTCTRL_VDBE_COVERAGE 21 6121 -#define SQLITE_TESTCTRL_LAST 21 6121 +#define SQLITE_TESTCTRL_BYTEORDER 22 6122 +#define SQLITE_TESTCTRL_LAST 22 6122 6123 6123 6124 /* 6124 6125 ** CAPI3REF: SQLite Runtime Status 6125 6126 ** 6126 6127 ** ^This interface is used to retrieve runtime status information 6127 6128 ** about the performance of SQLite, and optionally to reset various 6128 6129 ** highwater marks. ^The first argument is an integer code for
Changes to src/sqliteInt.h.
549 549 ** evaluated at runtime. 550 550 */ 551 551 #ifdef SQLITE_AMALGAMATION 552 552 const int sqlite3one = 1; 553 553 #else 554 554 extern const int sqlite3one; 555 555 #endif 556 -#if defined(i386) || defined(__i386__) || defined(_M_IX86)\ 557 - || defined(__x86_64) || defined(__x86_64__) 556 +#if defined(i386) || defined(__i386__) || defined(_M_IX86) \ 557 + || defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) \ 558 + || defined(_M_AMD64) || defined(_M_ARM) || defined(__x86) 559 +# define SQLITE_BYTEORDER 1234 558 560 # define SQLITE_BIGENDIAN 0 559 561 # define SQLITE_LITTLEENDIAN 1 560 562 # define SQLITE_UTF16NATIVE SQLITE_UTF16LE 561 563 #else 564 +# define SQLITE_BYTEORDER 0 /* 0 means "unknown at compile-time" */ 562 565 # define SQLITE_BIGENDIAN (*(char *)(&sqlite3one)==0) 563 566 # define SQLITE_LITTLEENDIAN (*(char *)(&sqlite3one)==1) 564 -# define SQLITE_UTF16NATIVE (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE) 567 +# define SQLITE_UTF16NATIVE (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE) 565 568 #endif 566 569 567 570 /* 568 571 ** Constants for the largest and smallest possible 64-bit signed integers. 569 572 ** These macros are designed to work correctly on both 32-bit and 64-bit 570 573 ** compilers. 571 574 */