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circache: add compaction function

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This commit is contained in:
Jean-Francois Dockes
2021-03-24 16:28:29 +01:00
parent 8fde38975a
commit efc29e11a7
3 changed files with 176 additions and 34 deletions
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src/testmains/trcircache.cpp
+23 -27
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@@ -34,6 +34,8 @@ static char usage [] =
" -a <targetdir> <dir> [<dir> ...]: append content from existing cache(s) to target\n"
" The target should be first resized to hold all the data, else only\n"
" as many entries as capacity permit will be retained\n"
" -C <dir> : recover space from erased entries. May temporarily need twice the current "
" space used by the cache\n";
;
static void
@@ -54,6 +56,7 @@ static int op_flags;
#define OPT_u 0x100
#define OPT_e 0x200
#define OPT_a 0x800
#define OPT_C 0x1000
bool storeFile(CirCache& cc, const std::string fn);
@@ -74,24 +77,13 @@ int main(int argc, char **argv)
}
while (**argv)
switch (*(*argv)++) {
case 'a':
op_flags |= OPT_a;
break;
case 'c':
op_flags |= OPT_c;
break;
case 'D':
op_flags |= OPT_D;
break;
case 'd':
op_flags |= OPT_d;
break;
case 'e':
op_flags |= OPT_e;
break;
case 'g':
op_flags |= OPT_g;
break;
case 'a': op_flags |= OPT_a; break;
case 'C': op_flags |= OPT_C; break;
case 'c': op_flags |= OPT_c; break;
case 'D': op_flags |= OPT_D; break;
case 'd': op_flags |= OPT_d; break;
case 'e': op_flags |= OPT_e; break;
case 'g': op_flags |= OPT_g; break;
case 'i':
op_flags |= OPT_i;
if (argc < 2) {
@@ -102,15 +94,9 @@ int main(int argc, char **argv)
}
argc--;
goto b1;
case 'p':
op_flags |= OPT_p;
break;
case 'u':
op_flags |= OPT_u;
break;
default:
Usage();
break;
case 'p': op_flags |= OPT_p; break;
case 'u': op_flags |= OPT_u; break;
default: Usage(); break;
}
b1:
argc--;
@@ -141,6 +127,16 @@ b1:
cerr << "Create failed:" << cc.getReason() << endl;
exit(1);
}
} else if (op_flags & OPT_C) {
if (argc) {
Usage();
}
std::string reason;
if (!CirCache::compact(dir, &reason)) {
std::cerr << "Compact failed: " << reason << "\n";
return 1;
}
return 0;
} else if (op_flags & OPT_a) {
if (argc < 1) {
Usage();