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Overview
| Comment: | More detailed compile-time testing before attempting to use atomic load intrinsics. See forum post fc0237a39b30ac0a. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
5204c2c4a7b73a64764b0d2d1d7c5370 |
| User & Date: | drh 2021-01-09 18:24:33 |
References
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2021-07-05
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| 17:15 | Revert [5204c2c4a7b73a64], restoring the old pre-processor logic for determining the availability of the __atomic_store_n()/__atomic_load_n() primitives. (check-in: e690abb9 user: dan tags: trunk) | |
Context
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2021-01-09
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| 19:10 | New CLI command: ".stats vmstep" enables the display of the virtual-machine step count only, after each command. Useful for optimization problems. (check-in: 49dfce46 user: drh tags: trunk) | |
| 18:24 | More detailed compile-time testing before attempting to use atomic load intrinsics. See forum post fc0237a39b30ac0a. (check-in: 5204c2c4 user: drh tags: trunk) | |
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2021-01-08
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| 19:53 | Fix an issue with sha3_query() when the first argument contains blank SQL statements. (check-in: 24baab9a user: drh tags: trunk) | |
Changes
Changes to src/sqliteInt.h.
| ︙ | ︙ | |||
210 211 212 213 214 215 216 | /* ** WAL mode depends on atomic aligned 32-bit loads and stores in a few ** places. The following macros try to make this explicit. */ #ifndef __has_extension # define __has_extension(x) 0 /* compatibility with non-clang compilers */ #endif | | > | 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 |
/*
** WAL mode depends on atomic aligned 32-bit loads and stores in a few
** places. The following macros try to make this explicit.
*/
#ifndef __has_extension
# define __has_extension(x) 0 /* compatibility with non-clang compilers */
#endif
#if GCC_VERSION>=4007000 || \
(__has_extension(c_atomic) && __has_extension(c_atomic_store_n))
# define AtomicLoad(PTR) __atomic_load_n((PTR),__ATOMIC_RELAXED)
# define AtomicStore(PTR,VAL) __atomic_store_n((PTR),(VAL),__ATOMIC_RELAXED)
#else
# define AtomicLoad(PTR) (*(PTR))
# define AtomicStore(PTR,VAL) (*(PTR) = (VAL))
#endif
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| ︙ | ︙ |