int
cmd_ecache_flush(int cpuid)
{
int fd;
if ((fd = open(cmd.cmd_ecache_dev, O_RDONLY)) < 0) {
if (errno != ENOENT)
return (-1); /* errno is set for us */
/*
* A DR may have occurred, thus rendering our path invalid.
* Try once to find another one.
*/
if (cmd_ecache_init() < 0 ||
(fd = open(cmd.cmd_ecache_dev, O_RDONLY)) < 0)
return (-1); /* errno is set for us */
}
if (ioctl(fd, MCIOC_ECFLUSH, cpuid) < 0) {
int oserr = errno;
(void) close(fd);
return (cmd_set_errno(oserr));
}
(void) close(fd);
return (0);
}
void *
cmd_buf_read(fmd_hdl_t *hdl, fmd_case_t *cp, const char *bufname, size_t bufsz)
{
void *buf;
size_t sz;
if ((sz = fmd_buf_size(hdl, cp, bufname)) == 0) {
(void) cmd_set_errno(ENOENT);
return (NULL);
} else if (sz != bufsz) {
(void) cmd_set_errno(EINVAL);
return (NULL);
}
buf = fmd_hdl_alloc(hdl, bufsz, FMD_SLEEP);
fmd_buf_read(hdl, cp, bufname, buf, bufsz);
return (buf);
}
static int
ecache_scan_dir(const char *dir, const char *pref, char *buf, size_t bufsz)
{
struct dirent *dp;
char path[MAXPATHLEN];
DIR *mcdir;
if ((mcdir = opendir(dir)) == NULL)
return (-1); /* errno is set for us */
while ((dp = readdir(mcdir)) != NULL) {
struct mc_ctrlconf mcc;
int fd;
if (strncmp(dp->d_name, pref, strlen(pref)) != 0)
continue;
(void) snprintf(path, sizeof (path), "%s/%s", dir, dp->d_name);
if ((fd = open(path, O_RDONLY)) < 0)
continue;
mcc.nmcs = 0;
if (ioctl(fd, MCIOC_CTRLCONF, &mcc) >= 0 || errno != EINVAL ||
mcc.nmcs == 0) {
(void) close(fd);
continue;
}
(void) close(fd);
(void) closedir(mcdir);
if (strlen(path) >= bufsz)
return (cmd_set_errno(ENOSPC));
(void) strcpy(buf, path);
return (0);
}
(void) closedir(mcdir);
return (cmd_set_errno(ENOENT));
}
