138 lines
3.5 KiB
Plaintext
138 lines
3.5 KiB
Plaintext
--- makeboot.c
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+++ makeboot.c 2009/02/05 23:36:16
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@@ -13,6 +13,12 @@
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#include <errno.h>
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#include <limits.h>
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#include "makeboot.h"
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+#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
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+# include <sys/types.h>
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+# include <sys/stat.h>
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+# include <fcntl.h>
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+static int o_flags = O_RDONLY;
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+#endif
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int tree_entries = 0;
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@@ -95,6 +101,7 @@
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/*
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* check whether the given target would create an infinte loop
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*/
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+static int loop;
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static int check_loop(struct makenode *dep, struct makenode *src)
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{
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struct makelist *s;
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@@ -103,6 +110,8 @@
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fprintf(stderr, "loop exists %s in %s!\n", dep->name, src->name);
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return 1;
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}
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+ if (loop++ > 999)
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+ return 1;
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if (check_loop(s->node, src))
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return 1;
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}
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@@ -117,6 +126,7 @@
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struct makenode *dep;
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dep = add_target(dst);
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+ loop = 0;
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if (check_loop(dep, node))
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return;
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dep->select = new_list(node, dep->select);
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@@ -158,11 +168,28 @@
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char *s, *strp, *p;
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struct makenode *node;
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- if ((fp = fopen(path, "r")) == NULL) {
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+#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
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+ int fd;
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+
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+ if (getuid() == (uid_t)0)
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+ o_flags |= O_NOATIME;
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+ if ((fd = open(path, o_flags)) < 0) {
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fprintf(stderr, "Can't open %s: %s\n", path, strerror(errno));
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exit(1);
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}
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-
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_WILLNEED);
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL);
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_NOREUSE);
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+
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+ if ((fp = fdopen(fd, "r")) == NULL)
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+#else
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+ if ((fp = fopen(path, "r")) == NULL)
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+#endif
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+ {
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+ fprintf(stderr, "Can't open %s: %s\n", path, strerror(errno));
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+ exit(1);
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+ }
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+
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while (fgets(buf, sizeof(buf), fp)) {
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for (s = buf; *s && isspace(*s); s++)
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;
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@@ -198,6 +225,11 @@
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}
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}
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}
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+
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+#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED);
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+#endif
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+
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fclose(fp);
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for (node = tree_list; node; node = node->next) {
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@@ -234,7 +266,17 @@
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filter_prefix = prefix;
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snprintf(path, sizeof(path), "/etc/init.d/%s.d", dir);
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+#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
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+ if ((i = open(path, o_flags|O_DIRECTORY|O_LARGEFILE)) >= 0) {
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+ (void)posix_fadvise(i, 0, 0, POSIX_FADV_SEQUENTIAL);
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+ (void)posix_fadvise(i, 0, 0, POSIX_FADV_NOREUSE);
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+ }
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+#endif
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ndirs = scandir(path, &dirlist, dirfilter, alphasort);
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+#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
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+ if (i >= 0)
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+ (void)posix_fadvise(i, 0, 0, POSIX_FADV_DONTNEED);
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+#endif
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/* mark all matching nodes */
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for (i = 0; i < ndirs; i++) {
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t = lookup_target(dirlist[i]->d_name + 3);
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@@ -342,6 +384,17 @@
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}
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}
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if (best) {
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+#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
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+ char path[128];
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+ int fd;
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+ snprintf(path, sizeof(path), "/etc/init.d/%s", best->name);
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+ if ((fd = open(path, o_flags|O_DIRECT)) >= 0) {
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_WILLNEED);
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_SEQUENTIAL);
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_NOREUSE);
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+ close(fd);
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+ }
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+#endif
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blogger("service %s", best->name);
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best->status = T_RUNNING;
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}
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@@ -359,6 +412,17 @@
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return;
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for (n = node->select; n; n = n->next)
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n->node->num_deps--;
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+#if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) >= 600
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+ {
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+ char path[128];
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+ int fd;
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+ snprintf(path, sizeof(path), "/etc/init.d/%s", node->name);
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+ if ((fd = open(path, o_flags|O_DIRECT)) >= 0) {
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+ (void)posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED);
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+ close(fd);
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+ }
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+ }
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+#endif
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node->status = T_FINISHED;
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blogger("service %s done", node->name);
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}
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