delete.c

UNIX编程高级环境（第二版）的网络套接字部分的程序源码

#include    "db.h"

/* Delete the specified record */

int
db_delete(DB *db, const char *key)
{
    int        rc;

    if (_db_find(db, key, 1) == 0) {
        rc = _db_dodelete(db);    /* record found */
        db->cnt_delok++;
    } else {
        rc = -1;                /* not found */
        db->cnt_delerr++;
    }

    if (un_lock(db->idxfd, db->chainoff, SEEK_SET, 1) < 0)
        err_dump("un_lock error");
    return(rc);
}