= 0) { size = PAGE_SIZE; } //分配4k以上不用malloc,用posix_memalign /* int posix_memalign...(void **memptr, size_t alignment, size_t size); */ int ret = posix_memalign((void **) &pool...*mp_malloc_large(struct mp_pool_s *pool, size_t size) { unsigned char *big_addr; int ret = posix_memalign...= 0) { size = PAGE_SIZE; } //分配4k以上不用malloc,用posix_memalign /* int posix_memalign...(void **memptr, size_t alignment, size_t size); */ int ret = posix_memalign((void **) &pool
\n"; char* buf = NULL; //buf = (char*)malloc(BUF_LEN); //地址要是512的倍数——内存边界对齐 posix_memalign((void...= -1; time_t start; time_t cur; int rlen = 0; int ret = 0; static int read_total = 0; ret = posix_memalign...((void**)&buf,512,BUF_SIZE); if (ret)fprintf(stderr,"posix_memalign failed.reason:%s\n",strerror(errno
S_IRWXG|S_IROTH); printf("open: %s\n", strerror(errno)); char* buf; errcode = posix_memalign...((void**)&buf, sysconf(_SC_PAGESIZE), sysconf(_SC_PAGESIZE)); printf("posix_memalign: %s\n",
posix_memalign(void** memptr, size_t alignment, size_t size):分配对齐的内存块。...【3】posix_memalign(void memptr, size_t alignment, size_t size):分配对齐的内存块。...memPtr; size_t alignment = 16; // 对齐要求为16字节 size_t size = 32; // 分配32字节的内存 int status = posix_memalign...\n"); } return 0; } 在这个例子中,使用 posix_memalign 函数分配了一个对齐的内存块,要求对齐要求为16字节,分配32字节的内存。
fi->iovecs[current_block].iov_len = bytes_to_read; // 申请内存 void *buf; if( posix_memalign...(&buf, BLOCK_SZ, BLOCK_SZ)) { perror("posix_memalign"); return 1; }
pwrite() ... found checking for sys_nerr ... found checking for localtime_r() ... found checking for posix_memalign
size_t size = st.st_size + (getpagesize() - st.st_size%getpagesize()); posix_memalign
for pwrite() … found checking for sys_nerr … found checking for localtime_r() … found checking for posix_memalign...for pwrite() … found checking for sys_nerr … found checking for localtime_r() … found checking for posix_memalign
0x4C2D136: memalign (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==41400== by 0x4C2D251: posix_memalign
pwrite() ... found checking for sys_nerr ... found checking for localtime_r() ... found checking for posix_memalign...pwrite() ... found checking for sys_nerr ... found checking for localtime_r() ... found checking for posix_memalign
struct timespec timeout; char *wbuf; int wbuflen = 1024; int ret, num = 0, i; posix_memalign
libc_valloc(size_t size) PREALIAS(je_valloc); # endif # ifdef JEMALLOC_OVERRIDE___POSIX_MEMALIGN int __posix_memalign
if (bytes_to_read > BLOCK_SZ) bytes_to_read = BLOCK_SZ; void *buf; if( posix_memalign...(&buf, BLOCK_SZ, BLOCK_SZ)) { perror("posix_memalign"); return 1; }...BLOCK_SZ; fi->iovecs[current_block].iov_len = bytes_to_read; void *buf; if( posix_memalign...(&buf, BLOCK_SZ, BLOCK_SZ)) { perror("posix_memalign"); return 1; }
ngx_memalign(size_t alignment, size_t size, ngx_log_t *log) { void *p; int err; err = posix_memalign...if (err) { ngx_log_error(NGX_LOG_EMERG, log, err, "posix_memalign(%uz, %uz) failed", alignment..., size); p = NULL; } ngx_log_debug3(NGX_LOG_DEBUG_ALLOC, log, 0, "posix_memalign
return kNotFound; } static __thread void *readBuffer = NULL; if (unlikely(readBuffer == NULL)) { posix_memalign...void *buffer = NULL; size_t mallocSize = 4096 + 4096 + (n * sizeof(T) / 4096 * 4096); posix_memalign
第一步:申请PageSize对齐的内存 这一步除了使用mmap,还可以使用posix_memalign。 第二步:生成函数框架 在这里我们将一整个Brainfuck程序编译成一个函数。
mmap, mmap_enter); ATTACH_URETPROBE_CHECKED(skel, mmap, mmap_exit); ATTACH_UPROBE_CHECKED(skel, posix_memalign..., posix_memalign_enter); ATTACH_URETPROBE_CHECKED(skel, posix_memalign, posix_memalign_exit); ATTACH_UPROBE_CHECKED...这些挂载点包括常见的内存分配函数,如malloc、calloc、realloc、mmap、posix_memalign、memalign、free等,以及对应的退出点。
For applications that want to use hugepages, use of posix_memalign() can also help ensure that large
size_t size); // 分配内存 对齐 void mp_free(struct mp_pool_s *pool, void *p); // 释放p节点内存 接下来介绍接口实现,先介绍一个接口函数posix_memalign...,函数原型如下: int posix_memalign(void**memptr, size_t alignment, size_t size); /* memptr: 分配好的内存空间的首地址 alignment...mp_create_pool(size_t size) { struct mp_pool_s *p; // 分配内存池内存:mp_pool_s + mp_node_s + size int ret = posix_memalign
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