table of contents
| buffer_mmapread(3) | Library Functions Manual | buffer_mmapread(3) |
NAME¶
buffer_mmapread - create read-only memory-mapped file bufferSYNTAX¶
#include <buffer.h>int buffer_mmapread(buffer &b,const char* filename);
DESCRIPTION¶
buffer_mmapread opens filename for reading and fills b so that the contents of the file can be read from it. Using mmap is more efficient than reading through a real buffer, but you have to call buffer_close to unmap the memory in the end.EXAMPLE¶
#include <buffer.h> #include <open.h>buffer input; char x;
buffer_mmapread(&input,"/etc/passwd"); while (buffer_get(&input,&x,1)==1) { buffer_put(buffer_1,&x,1); if (x=='\n') break; } buffer_flush(buffer_1); buffer_close(&input);