82 lines
1.3 KiB
C
82 lines
1.3 KiB
C
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#pragma once
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/**
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* @brief Solana string and memory system calls and utilities
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*/
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#include <sol/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Copies memory
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*/
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static void sol_memcpy(void *dst, const void *src, int len) {
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for (int i = 0; i < len; i++) {
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*((uint8_t *)dst + i) = *((const uint8_t *)src + i);
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}
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}
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/**
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* Compares memory
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*/
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static int sol_memcmp(const void *s1, const void *s2, int n) {
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for (int i = 0; i < n; i++) {
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uint8_t diff = *((uint8_t *)s1 + i) - *((const uint8_t *)s2 + i);
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if (diff) {
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return diff;
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}
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}
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return 0;
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}
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/**
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* Fill a byte string with a byte value
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*/
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static void *sol_memset(void *b, int c, size_t len) {
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uint8_t *a = (uint8_t *) b;
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while (len > 0) {
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*a = c;
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a++;
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len--;
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}
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}
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/**
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* Find length of string
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*/
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static size_t sol_strlen(const char *s) {
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size_t len = 0;
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while (*s) {
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len++;
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s++;
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}
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return len;
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}
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/**
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* Internal memory alloc/free function
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*/
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void *sol_alloc_free_(uint64_t size, void *ptr);
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/**
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* Alloc zero-initialized memory
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*/
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static void *sol_calloc(size_t nitems, size_t size) {
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return sol_alloc_free_(nitems * size, 0);
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}
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/**
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* Deallocates the memory previously allocated by sol_calloc
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*/
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static void sol_free(void *ptr) {
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(void) sol_alloc_free_(0, ptr);
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}
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#ifdef __cplusplus
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}
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#endif
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/**@}*/
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