/usr/share/gocode/src/github.com/hanwen/go-fuse/benchmark/statfs.cc is in golang-github-hanwen-go-fuse-dev 0.0~git20171124.0.14c3015-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | // +build !cgo
// g++ -Wall `pkg-config fuse --cflags --libs` statfs.cc -o statfs
#include <unordered_map>
#include <string>
using std::string;
using std::unordered_map;
#define FUSE_USE_VERSION 26
extern "C" {
#include <fuse.h>
}
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
useconds_t delay_usec;
class StatFs {
public:
void readFrom(const string& fn);
unordered_map<string, bool> is_dir_;
int GetAttr(const char *name, struct stat *statbuf) {
if (strcmp(name, "/") == 0) {
statbuf->st_mode = S_IFDIR | 0777;
return 0;
}
unordered_map<string, bool>::const_iterator it(is_dir_.find(name));
if (it == is_dir_.end()) {
return -ENOENT;
}
if (it->second) {
statbuf->st_mode = S_IFDIR | 0777;
} else {
statbuf->st_nlink = 1;
statbuf->st_mode = S_IFREG | 0666;
}
if (delay_usec > 0) {
usleep(delay_usec);
}
return 0;
}
};
StatFs *global;
int global_getattr(const char *name, struct stat *statbuf) {
return global->GetAttr(name, statbuf);
}
void StatFs::readFrom(const string& fn) {
FILE *f = fopen(fn.c_str(), "r");
char line[1024];
while (char *s = fgets(line, sizeof(line), f)) {
int l = strlen(s);
if (line[l-1] == '\n') {
line[l-1] = '\0';
l--;
}
bool is_dir = line[l-1] == '/';
if (is_dir) {
line[l-1] = '\0';
}
is_dir_[line] = is_dir;
}
fclose(f);
}
int main(int argc, char *argv[])
{
global = new StatFs;
// don't want to know about fuselib's option handling
char *in = getenv("STATFS_INPUT");
if (!in || !*in) {
fprintf(stderr, "pass file in $STATFS_INPUT\n");
exit(2);
}
global->readFrom(in);
in = getenv("STATFS_DELAY_USEC");
if (in != NULL) {
delay_usec = atoi(in);
}
struct fuse_operations statfs_oper = {0};
statfs_oper.getattr = &global_getattr;
return fuse_main(argc, argv, &statfs_oper, NULL);
}
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