src/util/intern.h
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #ifndef UTIL_INTERN_H | ||
| 2 | #define UTIL_INTERN_H | ||
| 3 | |||
| 4 | #include <stdbool.h> | ||
| 5 | #include <stddef.h> | ||
| 6 | #include <string.h> | ||
| 7 | #include "macros.h" | ||
| 8 | #include "string-view.h" | ||
| 9 | |||
| 10 | const void *mem_intern(const void *data, size_t len) NONNULL_ARGS_AND_RETURN WARN_UNUSED_RESULT; | ||
| 11 | bool mem_is_intern(const void *data, size_t len) WARN_UNUSED_RESULT; | ||
| 12 | void free_interned_strings(void); | ||
| 13 | |||
| 14 | 2377 | static inline const char *str_intern(const char *str) | |
| 15 | { | ||
| 16 | 2377 | return mem_intern(str, strlen(str)); | |
| 17 | } | ||
| 18 | |||
| 19 | 11 | static inline StringView strview_intern(const char *str) | |
| 20 | { | ||
| 21 | 11 | size_t len = strlen(str); | |
| 22 | 11 | return string_view(mem_intern(str, len), len); | |
| 23 | } | ||
| 24 | |||
| 25 | 515 | static inline bool str_is_intern(const char *str) | |
| 26 | { | ||
| 27 |
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515 | return str && mem_is_intern(str, strlen(str)); |
| 28 | } | ||
| 29 | |||
| 30 | // Test 2 interned strings for equality, via pointer equality. This | ||
| 31 | // function exists purely to "self-document" the places in the codebase | ||
| 32 | // where pointer equality is used as a substitute for streq(). Note | ||
| 33 | // that particular attention should be given to the special case in | ||
| 34 | // encoding_from_type() and buffer_set_encoding(), when making changes | ||
| 35 | // here. | ||
| 36 | 2385 | static inline bool interned_strings_equal(const char *a, const char *b) | |
| 37 | { | ||
| 38 | 2385 | return a == b; | |
| 39 | } | ||
| 40 | |||
| 41 | #endif | ||
| 42 |