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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fa0d98462f
Remove the last unneeded use of cache.h in a header, we can check where it is really needed, i.e. we can remove it and be sure that it isn't being obtained indirectly. This is an old file, used by now incorrectly in many places, so it was providing includes needed indirectly, fixup this fallout. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-3x3l8gihoaeh7714os861ia7@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
95 lines
1.9 KiB
C
95 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* I'm tired of doing "vsnprintf()" etc just to open a
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* file, so here's a "return static buffer with printf"
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* interface for paths.
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*
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* It's obviously not thread-safe. Sue me. But it's quite
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* useful for doing things like
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*
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* f = open(mkpath("%s/%s.perf", base, name), O_RDONLY);
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*
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* which is what it's designed for.
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*/
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#include "path.h"
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#include "cache.h"
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#include <linux/kernel.h>
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <unistd.h>
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static char bad_path[] = "/bad-path/";
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/*
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* One hack:
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*/
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static char *get_pathname(void)
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{
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static char pathname_array[4][PATH_MAX];
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static int idx;
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return pathname_array[3 & ++idx];
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}
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static char *cleanup_path(char *path)
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{
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/* Clean it up */
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if (!memcmp(path, "./", 2)) {
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path += 2;
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while (*path == '/')
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path++;
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}
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return path;
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}
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char *mkpath(const char *fmt, ...)
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{
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va_list args;
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unsigned len;
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char *pathname = get_pathname();
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va_start(args, fmt);
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len = vsnprintf(pathname, PATH_MAX, fmt, args);
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va_end(args);
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if (len >= PATH_MAX)
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return bad_path;
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return cleanup_path(pathname);
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}
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int path__join(char *bf, size_t size, const char *path1, const char *path2)
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{
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return scnprintf(bf, size, "%s%s%s", path1, path1[0] ? "/" : "", path2);
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}
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int path__join3(char *bf, size_t size, const char *path1, const char *path2, const char *path3)
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{
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return scnprintf(bf, size, "%s%s%s%s%s", path1, path1[0] ? "/" : "",
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path2, path2[0] ? "/" : "", path3);
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}
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bool is_regular_file(const char *file)
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{
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struct stat st;
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if (stat(file, &st))
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return false;
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return S_ISREG(st.st_mode);
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}
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/* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */
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bool is_directory(const char *base_path, const struct dirent *dent)
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{
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char path[PATH_MAX];
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struct stat st;
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sprintf(path, "%s/%s", base_path, dent->d_name);
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if (stat(path, &st))
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return false;
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return S_ISDIR(st.st_mode);
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}
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