1#ifndef TR2_DST_H 2#define TR2_DST_H 3 4struct strbuf; 5#include"trace2/tr2_sysenv.h" 6 7struct tr2_dst { 8enum tr2_sysenv_variable sysenv_var; 9int fd; 10unsigned int initialized :1; 11unsigned int need_close :1; 12}; 13 14/* 15 * Disable TRACE2 on the destination. In TRACE2 a destination (DST) 16 * wraps a file descriptor; it is associated with a TARGET which 17 * defines the formatting. 18 */ 19voidtr2_dst_trace_disable(struct tr2_dst *dst); 20 21/* 22 * Return the file descriptor for the DST. 23 * If 0, the dst is closed or disabled. 24 */ 25inttr2_dst_get_trace_fd(struct tr2_dst *dst); 26 27/* 28 * Return true if the DST is opened for writing. 29 */ 30inttr2_dst_trace_want(struct tr2_dst *dst); 31 32/* 33 * Write a single line/message to the trace file. 34 */ 35voidtr2_dst_write_line(struct tr2_dst *dst,struct strbuf *buf_line); 36 37#endif/* TR2_DST_H */