Zedhugh Chen
2fc4b33359
- 重构模块使用新的代码风格 - 老代码 (src 目录下的代码) 继续使用之前的代码风格 通过在需要不同代码风格的目录下放对应 .clang-format 配置文件实现
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
#pragma once
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#define p_alloc_nr(x) (((x) + 16) * 3 / 2)
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#define p_new(type, count) ((type *)xmalloc(sizeof(type) * (count)))
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#define p_clear(p, count) ((void)memset((p), 0, sizeof(*(p)) * (count)))
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#define p_realloc(pp, count) xrealloc((void *)(pp), sizeof(**(pp)) * (count))
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#define p_copy(src, count) xmemcopy((src), sizeof(*(src)) * (count))
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#define p_delete(mem_p) \
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do { \
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void **__ptr = (void **)(mem_p); \
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free(*__ptr); \
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*(void **)__ptr = nullptr; \
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} while (0)
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#define p_take(dst_p, src_p) \
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do { \
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p_delete(dst_p); \
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*(dst_p) = *(src_p); \
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*(src_p) = nullptr; \
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} while (0)
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static inline char *p_strdup(const char *text) {
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char *r = strdup(text);
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if (!r) abort();
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return r;
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}
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static inline char *p_strndup(const char *text, size_t n) {
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char *r = strndup(text, n);
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if (!r) abort();
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return r;
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}
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static inline char *p_strdup_nullable(const char *text) {
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if (!text) return nullptr;
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return p_strdup(text);
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}
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static inline void *__attribute__((malloc)) xmalloc(ssize_t size) {
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void *ptr;
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if (size <= 0) return nullptr;
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ptr = calloc(1, size);
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if (!ptr) abort();
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return ptr;
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}
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static inline void *xmemcopy(const void *src, size_t n) {
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if (!n) return nullptr;
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void *mem = xmalloc(n);
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void *ret = memcpy(mem, src, n);
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if (ret != mem) abort();
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return ret;
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}
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static inline void xrealloc(void **ptr, ssize_t newsize) {
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if (newsize <= 0) p_delete(ptr);
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else {
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*ptr = realloc(*ptr, newsize);
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if (!*ptr) abort();
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}
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}
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/*
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* Unlike strlen(), a_strlen() accepts nullptr and returns 0 in that case.
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*/
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static inline ssize_t a_strlen(const char *s) { return s ? strlen(s) : 0; }
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