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| author | Bruce Hill <bruce@bruce-hill.com> | 2024-12-19 15:16:33 -0500 |
|---|---|---|
| committer | Bruce Hill <bruce@bruce-hill.com> | 2024-12-19 15:16:33 -0500 |
| commit | 221f4ad7ea257d7d65598e89799cb389d6d5932d (patch) | |
| tree | 03752fbc6042c3241f6fde70eb843e60e6b7bf7a | |
| parent | 88d1bde371ba6bec42952f7cce242afd41f524d9 (diff) | |
Default RNG now uses static, thread-local memory instead of heap
allocated
| -rw-r--r-- | stdlib/rng.c | 4 | ||||
| -rw-r--r-- | stdlib/rng.h | 2 | ||||
| -rw-r--r-- | stdlib/stdlib.c | 2 |
3 files changed, 4 insertions, 4 deletions
diff --git a/stdlib/rng.c b/stdlib/rng.c index c6bcfa5d..8e98aa8e 100644 --- a/stdlib/rng.c +++ b/stdlib/rng.c @@ -18,14 +18,14 @@ #include "chacha.h" -public RNG_t default_rng = NULL; - struct RNGState_t { chacha_ctx chacha; size_t unused_bytes; uint8_t random_bytes[1024]; }; +public _Thread_local RNG_t default_rng = (struct RNGState_t[1]){}; + PUREFUNC static Text_t RNG$as_text(const void *rng, bool colorize, const TypeInfo_t*) { if (!rng) return Text("RNG"); diff --git a/stdlib/rng.h b/stdlib/rng.h index 89b53505..5bc4794f 100644 --- a/stdlib/rng.h +++ b/stdlib/rng.h @@ -26,6 +26,6 @@ Num_t RNG$num(RNG_t rng, Num_t min, Num_t max); Num32_t RNG$num32(RNG_t rng, Num32_t min, Num32_t max); extern const TypeInfo_t RNG$info; -extern RNG_t default_rng; +extern _Thread_local RNG_t default_rng; // vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0 diff --git a/stdlib/stdlib.c b/stdlib/stdlib.c index c7f1c13b..cb9d2213 100644 --- a/stdlib/stdlib.c +++ b/stdlib/stdlib.c @@ -54,7 +54,7 @@ public void tomo_init(void) if (read(rng_fd, (void*)random_bytes, 40) < 40) fail("Couldn't read from /dev/urandom"); Array_t rng_seed = {.length=40, .data=random_bytes, .stride=1, .atomic=1}; - default_rng = RNG$new(rng_seed); + RNG$set_seed(default_rng, rng_seed); if (register_printf_specifier('k', printf_text, printf_text_size)) errx(1, "Couldn't set printf specifier"); |