#define _LARGEFILE64_SOURCE 1
-
+#undef NDEBUG
#include "bupsplit.h"
#include <Python.h>
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <arpa/inet.h>
-#include <linux/fs.h>
#include <stdint.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#ifdef linux
+#include <linux/fs.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/time.h>
+#endif
+
+static int istty2 = 0;
+
+// Probably we should use autoconf or something and set HAVE_PY_GETARGCARGV...
+#if __WIN32__ || __CYGWIN__
+
+// There's no 'ps' on win32 anyway, and Py_GetArgcArgv() isn't available.
+static void unpythonize_argv(void) { }
+
+#else // not __WIN32__
+
+// For some reason this isn't declared in Python.h
+extern void Py_GetArgcArgv(int *argc, char ***argv);
+
+static void unpythonize_argv(void)
+{
+ int argc, i;
+ char **argv, *arge;
+
+ Py_GetArgcArgv(&argc, &argv);
+
+ for (i = 0; i < argc-1; i++)
+ {
+ if (argv[i] + strlen(argv[i]) + 1 != argv[i+1])
+ {
+ // The argv block doesn't work the way we expected; it's unsafe
+ // to mess with it.
+ return;
+ }
+ }
+
+ arge = argv[argc-1] + strlen(argv[argc-1]) + 1;
+
+ if (strstr(argv[0], "python") && argv[1] == argv[0] + strlen(argv[0]) + 1)
+ {
+ char *p;
+ size_t len, diff;
+ p = strrchr(argv[1], '/');
+ if (p)
+ {
+ p++;
+ diff = p - argv[0];
+ len = arge - p;
+ memmove(argv[0], p, len);
+ memset(arge - diff, 0, diff);
+ for (i = 0; i < argc; i++)
+ argv[i] = argv[i+1] ? argv[i+1]-diff : NULL;
+ }
+ }
+}
+
+#endif // not __WIN32__ or __CYGWIN__
+
static PyObject *selftest(PyObject *self, PyObject *args)
{
if (!PyArg_ParseTuple(args, "t#", &buf, &len))
return NULL;
out = bupsplit_find_ofs(buf, len, &bits);
+ if (out) assert(bits >= BUP_BLOBBITS);
return Py_BuildValue("ii", out, bits);
}
return NULL;
v = ntohl(*(uint32_t *)buf);
- return Py_BuildValue("I", v);
+ return PyLong_FromUnsignedLong(v);
+}
+
+
+#define BLOOM2_HEADERLEN 16
+
+typedef struct {
+ uint32_t high;
+ unsigned char low;
+} bits40_t;
+
+static void to_bloom_address_bitmask4(const bits40_t *buf,
+ const int nbits, uint64_t *v, unsigned char *bitmask)
+{
+ int bit;
+ uint64_t raw, mask;
+
+ mask = (1<<nbits) - 1;
+ raw = (((uint64_t)ntohl(buf->high)) << 8) | buf->low;
+ bit = (raw >> (37-nbits)) & 0x7;
+ *v = (raw >> (40-nbits)) & mask;
+ *bitmask = 1 << bit;
+}
+
+static void to_bloom_address_bitmask5(const uint32_t *buf,
+ const int nbits, uint32_t *v, unsigned char *bitmask)
+{
+ int bit;
+ uint32_t raw, mask;
+
+ mask = (1<<nbits) - 1;
+ raw = ntohl(*buf);
+ bit = (raw >> (29-nbits)) & 0x7;
+ *v = (raw >> (32-nbits)) & mask;
+ *bitmask = 1 << bit;
+}
+
+#define BLOOM_SET_BIT(name, address, itype, otype) \
+static void name(unsigned char *bloom, const void *buf, const int nbits)\
+{\
+ unsigned char bitmask;\
+ otype v;\
+ address((itype *)buf, nbits, &v, &bitmask);\
+ bloom[BLOOM2_HEADERLEN+v] |= bitmask;\
+}
+BLOOM_SET_BIT(bloom_set_bit4, to_bloom_address_bitmask4, bits40_t, uint64_t)
+BLOOM_SET_BIT(bloom_set_bit5, to_bloom_address_bitmask5, uint32_t, uint32_t)
+
+
+#define BLOOM_GET_BIT(name, address, itype, otype) \
+static int name(const unsigned char *bloom, const void *buf, const int nbits)\
+{\
+ unsigned char bitmask;\
+ otype v;\
+ address((itype *)buf, nbits, &v, &bitmask);\
+ return bloom[BLOOM2_HEADERLEN+v] & bitmask;\
+}
+BLOOM_GET_BIT(bloom_get_bit4, to_bloom_address_bitmask4, bits40_t, uint64_t)
+BLOOM_GET_BIT(bloom_get_bit5, to_bloom_address_bitmask5, uint32_t, uint32_t)
+
+
+static PyObject *bloom_add(PyObject *self, PyObject *args)
+{
+ unsigned char *sha = NULL, *bloom = NULL;
+ unsigned char *end;
+ int len = 0, blen = 0, nbits = 0, k = 0;
+
+ if (!PyArg_ParseTuple(args, "w#s#ii", &bloom, &blen, &sha, &len, &nbits, &k))
+ return NULL;
+
+ if (blen < 16+(1<<nbits) || len % 20 != 0)
+ return NULL;
+
+ if (k == 5)
+ {
+ if (nbits > 29)
+ return NULL;
+ for (end = sha + len; sha < end; sha += 20/k)
+ bloom_set_bit5(bloom, sha, nbits);
+ }
+ else if (k == 4)
+ {
+ if (nbits > 37)
+ return NULL;
+ for (end = sha + len; sha < end; sha += 20/k)
+ bloom_set_bit4(bloom, sha, nbits);
+ }
+ else
+ return NULL;
+
+
+ return Py_BuildValue("i", len/20);
+}
+
+static PyObject *bloom_contains(PyObject *self, PyObject *args)
+{
+ unsigned char *sha = NULL, *bloom = NULL;
+ int len = 0, blen = 0, nbits = 0, k = 0;
+ unsigned char *end;
+ int steps;
+
+ if (!PyArg_ParseTuple(args, "t#s#ii", &bloom, &blen, &sha, &len, &nbits, &k))
+ return NULL;
+
+ if (len != 20)
+ return NULL;
+
+ if (k == 5)
+ {
+ if (nbits > 29)
+ return NULL;
+ for (steps = 1, end = sha + 20; sha < end; sha += 20/k, steps++)
+ if (!bloom_get_bit5(bloom, sha, nbits))
+ return Py_BuildValue("Oi", Py_None, steps);
+ }
+ else if (k == 4)
+ {
+ if (nbits > 37)
+ return NULL;
+ for (steps = 1, end = sha + 20; sha < end; sha += 20/k, steps++)
+ if (!bloom_get_bit4(bloom, sha, nbits))
+ return Py_BuildValue("Oi", Py_None, steps);
+ }
+ else
+ return NULL;
+
+ return Py_BuildValue("ii", 1, k);
}
+static uint32_t _extract_bits(unsigned char *buf, int nbits)
+{
+ uint32_t v, mask;
+
+ mask = (1<<nbits) - 1;
+ v = ntohl(*(uint32_t *)buf);
+ v = (v >> (32-nbits)) & mask;
+ return v;
+}
static PyObject *extract_bits(PyObject *self, PyObject *args)
{
unsigned char *buf = NULL;
int len = 0, nbits = 0;
- uint32_t v, mask;
if (!PyArg_ParseTuple(args, "t#i", &buf, &len, &nbits))
return NULL;
if (len < 4)
return NULL;
- mask = (1<<nbits) - 1;
- v = ntohl(*(uint32_t *)buf);
- v = (v >> (32-nbits)) & mask;
- return Py_BuildValue("I", v);
+ return PyLong_FromUnsignedLong(_extract_bits(buf, nbits));
+}
+
+
+struct sha {
+ unsigned char bytes[20];
+};
+struct idx {
+ unsigned char *map;
+ struct sha *cur;
+ struct sha *end;
+ uint32_t *cur_name;
+ long bytes;
+ int name_base;
+};
+
+
+static int _cmp_sha(const struct sha *sha1, const struct sha *sha2)
+{
+ int i;
+ for (i = 0; i < sizeof(struct sha); i++)
+ if (sha1->bytes[i] != sha2->bytes[i])
+ return sha1->bytes[i] - sha2->bytes[i];
+ return 0;
+}
+
+
+static void _fix_idx_order(struct idx **idxs, int *last_i)
+{
+ struct idx *idx;
+ int low, mid, high, c = 0;
+
+ idx = idxs[*last_i];
+ if (idxs[*last_i]->cur >= idxs[*last_i]->end)
+ {
+ idxs[*last_i] = NULL;
+ PyMem_Free(idx);
+ --*last_i;
+ return;
+ }
+ if (*last_i == 0)
+ return;
+
+ low = *last_i-1;
+ mid = *last_i;
+ high = 0;
+ while (low >= high)
+ {
+ mid = (low + high) / 2;
+ c = _cmp_sha(idx->cur, idxs[mid]->cur);
+ if (c < 0)
+ high = mid + 1;
+ else if (c > 0)
+ low = mid - 1;
+ else
+ break;
+ }
+ if (c < 0)
+ ++mid;
+ if (mid == *last_i)
+ return;
+ memmove(&idxs[mid+1], &idxs[mid], (*last_i-mid)*sizeof(struct idx *));
+ idxs[mid] = idx;
+}
+
+
+static uint32_t _get_idx_i(struct idx *idx)
+{
+ if (idx->cur_name == NULL)
+ return idx->name_base;
+ return ntohl(*idx->cur_name) + idx->name_base;
+}
+
+#define MIDX4_HEADERLEN 12
+
+static PyObject *merge_into(PyObject *self, PyObject *args)
+{
+ PyObject *ilist = NULL;
+ unsigned char *fmap = NULL;
+ struct sha *sha_ptr, *sha_start, *last = NULL;
+ uint32_t *table_ptr, *name_ptr, *name_start;
+ struct idx **idxs = NULL;
+ int flen = 0, bits = 0, i;
+ uint32_t total, count, prefix;
+ int num_i;
+ int last_i;
+
+ if (!PyArg_ParseTuple(args, "w#iIO", &fmap, &flen, &bits, &total, &ilist))
+ return NULL;
+
+ num_i = PyList_Size(ilist);
+ idxs = (struct idx **)PyMem_Malloc(num_i * sizeof(struct idx *));
+
+ for (i = 0; i < num_i; i++)
+ {
+ long len, sha_ofs, name_map_ofs;
+ idxs[i] = (struct idx *)PyMem_Malloc(sizeof(struct idx));
+ PyObject *itup = PyList_GetItem(ilist, i);
+ if (!PyArg_ParseTuple(itup, "t#llli", &idxs[i]->map, &idxs[i]->bytes,
+ &len, &sha_ofs, &name_map_ofs, &idxs[i]->name_base))
+ return NULL;
+ idxs[i]->cur = (struct sha *)&idxs[i]->map[sha_ofs];
+ idxs[i]->end = &idxs[i]->cur[len];
+ if (name_map_ofs)
+ idxs[i]->cur_name = (uint32_t *)&idxs[i]->map[name_map_ofs];
+ else
+ idxs[i]->cur_name = NULL;
+ }
+ table_ptr = (uint32_t *)&fmap[MIDX4_HEADERLEN];
+ sha_start = sha_ptr = (struct sha *)&table_ptr[1<<bits];
+ name_start = name_ptr = (uint32_t *)&sha_ptr[total];
+
+ last_i = num_i-1;
+ count = 0;
+ prefix = 0;
+ while (last_i >= 0)
+ {
+ struct idx *idx;
+ uint32_t new_prefix;
+ if (count % 102424 == 0 && istty2)
+ fprintf(stderr, "midx: writing %.2f%% (%d/%d)\r",
+ count*100.0/total, count, total);
+ idx = idxs[last_i];
+ new_prefix = _extract_bits((unsigned char *)idx->cur, bits);
+ while (prefix < new_prefix)
+ table_ptr[prefix++] = htonl(count);
+ memcpy(sha_ptr++, idx->cur, sizeof(struct sha));
+ *name_ptr++ = htonl(_get_idx_i(idx));
+ last = idx->cur;
+ ++idx->cur;
+ if (idx->cur_name != NULL)
+ ++idx->cur_name;
+ _fix_idx_order(idxs, &last_i);
+ ++count;
+ }
+ while (prefix < (1<<bits))
+ table_ptr[prefix++] = htonl(count);
+ assert(count == total);
+ assert(prefix == (1<<bits));
+ assert(sha_ptr == sha_start+count);
+ assert(name_ptr == name_start+count);
+
+ PyMem_Free(idxs);
+ return PyLong_FromUnsignedLong(count);
+}
+
+// This function should technically be macro'd out if it's going to be used
+// more than ocasionally. As of this writing, it'll actually never be called
+// in real world bup scenarios (because our packs are < MAX_INT bytes).
+static uint64_t htonll(uint64_t value)
+{
+ static const int endian_test = 42;
+
+ if (*(char *)&endian_test == endian_test) // LSB-MSB
+ return ((uint64_t)htonl(value & 0xFFFFFFFF) << 32) | htonl(value >> 32);
+ return value; // already in network byte order MSB-LSB
+}
+
+#define PACK_IDX_V2_HEADERLEN 8
+#define FAN_ENTRIES 256
+
+static PyObject *write_idx(PyObject *self, PyObject *args)
+{
+ PyObject *pf = NULL, *idx = NULL;
+ PyObject *part;
+ FILE *f;
+ unsigned char *fmap = NULL;
+ int flen = 0;
+ uint32_t total = 0;
+ uint32_t count;
+ int i, j, ofs64_count;
+ uint32_t *fan_ptr, *crc_ptr, *ofs_ptr;
+ struct sha *sha_ptr;
+
+ if (!PyArg_ParseTuple(args, "Ow#OI", &pf, &fmap, &flen, &idx, &total))
+ return NULL;
+
+ fan_ptr = (uint32_t *)&fmap[PACK_IDX_V2_HEADERLEN];
+ sha_ptr = (struct sha *)&fan_ptr[FAN_ENTRIES];
+ crc_ptr = (uint32_t *)&sha_ptr[total];
+ ofs_ptr = (uint32_t *)&crc_ptr[total];
+ f = PyFile_AsFile(pf);
+
+ count = 0;
+ ofs64_count = 0;
+ for (i = 0; i < FAN_ENTRIES; ++i)
+ {
+ int plen;
+ part = PyList_GET_ITEM(idx, i);
+ PyList_Sort(part);
+ plen = PyList_GET_SIZE(part);
+ count += plen;
+ *fan_ptr++ = htonl(count);
+ for (j = 0; j < plen; ++j)
+ {
+ unsigned char *sha = NULL;
+ int sha_len = 0;
+ uint32_t crc = 0;
+ uint64_t ofs = 0;
+ if (!PyArg_ParseTuple(PyList_GET_ITEM(part, j), "t#IK",
+ &sha, &sha_len, &crc, &ofs))
+ return NULL;
+ if (sha_len != sizeof(struct sha))
+ return NULL;
+ memcpy(sha_ptr++, sha, sizeof(struct sha));
+ *crc_ptr++ = htonl(crc);
+ if (ofs > 0x7fffffff)
+ {
+ uint64_t nofs = htonll(ofs);
+ if (fwrite(&nofs, sizeof(uint64_t), 1, f) != 1)
+ return PyErr_SetFromErrno(PyExc_OSError);
+ ofs = 0x80000000 | ofs64_count++;
+ }
+ *ofs_ptr++ = htonl((uint32_t)ofs);
+ }
+ }
+ return PyLong_FromUnsignedLong(count);
}
static PyObject *write_random(PyObject *self, PyObject *args)
{
uint32_t buf[1024/4];
- int fd = -1, seed = 0;
+ int fd = -1, seed = 0, verbose = 0;
ssize_t ret;
long long len = 0, kbytes = 0, written = 0;
- if (!PyArg_ParseTuple(args, "iLi", &fd, &len, &seed))
+ if (!PyArg_ParseTuple(args, "iLii", &fd, &len, &seed, &verbose))
return NULL;
srandom(seed);
written += ret;
if (ret < (int)sizeof(buf))
break;
- if (kbytes/1024 > 0 && !(kbytes%1024))
+ if (verbose && kbytes/1024 > 0 && !(kbytes%1024))
fprintf(stderr, "Random: %lld Mbytes\r", kbytes/1024);
}
}
+static PyObject *random_sha(PyObject *self, PyObject *args)
+{
+ static int seeded = 0;
+ uint32_t shabuf[20/4];
+ int i;
+
+ if (!seeded)
+ {
+ assert(sizeof(shabuf) == 20);
+ srandom(time(NULL));
+ seeded = 1;
+ }
+
+ if (!PyArg_ParseTuple(args, ""))
+ return NULL;
+
+ memset(shabuf, 0, sizeof(shabuf));
+ for (i=0; i < 20/4; i++)
+ shabuf[i] = random();
+ return Py_BuildValue("s#", shabuf, 20);
+}
+
+
static PyObject *open_noatime(PyObject *self, PyObject *args)
{
char *filename = NULL;
}
-static int set_linux_file_attr(const char *path, unsigned long attr)
-{
-}
-
-
-static PyObject *py_get_linux_file_attr(PyObject *self, PyObject *args)
+#ifdef linux
+static PyObject *bup_get_linux_file_attr(PyObject *self, PyObject *args)
{
int rc;
unsigned long attr;
}
-static PyObject *py_set_linux_file_attr(PyObject *self, PyObject *args)
+static PyObject *bup_set_linux_file_attr(PyObject *self, PyObject *args)
{
int rc;
unsigned long attr;
}
close(fd);
- return Py_True;
+ Py_RETURN_TRUE;
}
+#endif /* def linux */
-static PyObject *py_lutimes(PyObject *self, PyObject *args)
-{
- int rc;
- char *filename;
- double access, modification;
+#if defined(_ATFILE_SOURCE) \
+ || _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
+#define HAVE_BUP_UTIMENSAT 1
- if (!PyArg_ParseTuple(args, "s(dd)", &filename, &access, &modification))
+static PyObject *bup_utimensat(PyObject *self, PyObject *args)
+{
+ int rc, dirfd, flags;
+ char *path;
+ long access, access_ns, modification, modification_ns;
+ struct timespec ts[2];
+
+ if (!PyArg_ParseTuple(args, "is((ll)(ll))i",
+ &dirfd,
+ &path,
+ &access, &access_ns,
+ &modification, &modification_ns,
+ &flags))
return NULL;
- if(isnan(access))
+ if (isnan(access))
{
PyErr_SetString(PyExc_ValueError, "access time is NaN");
return NULL;
}
- else if(isinf(access))
+ else if (isinf(access))
{
PyErr_SetString(PyExc_ValueError, "access time is infinite");
return NULL;
}
- else if(isnan(modification))
+ else if (isnan(modification))
{
PyErr_SetString(PyExc_ValueError, "modification time is NaN");
return NULL;
}
- else if(isinf(modification))
+ else if (isinf(modification))
{
PyErr_SetString(PyExc_ValueError, "modification time is infinite");
return NULL;
}
- struct timeval tv[2];
+ if (isnan(access_ns))
+ {
+ PyErr_SetString(PyExc_ValueError, "access time ns is NaN");
+ return NULL;
+ }
+ else if (isinf(access_ns))
+ {
+ PyErr_SetString(PyExc_ValueError, "access time ns is infinite");
+ return NULL;
+ }
+ else if (isnan(modification_ns))
+ {
+ PyErr_SetString(PyExc_ValueError, "modification time ns is NaN");
+ return NULL;
+ }
+ else if (isinf(modification_ns))
+ {
+ PyErr_SetString(PyExc_ValueError, "modification time ns is infinite");
+ return NULL;
+ }
+
+ ts[0].tv_sec = access;
+ ts[0].tv_nsec = access_ns;
+ ts[1].tv_sec = modification;
+ ts[1].tv_nsec = modification_ns;
+
+ rc = utimensat(dirfd, path, ts, flags);
+ if (rc != 0)
+ return PyErr_SetFromErrnoWithFilename(PyExc_IOError, path);
+
+ Py_RETURN_TRUE;
+}
+
+#endif /* defined(_ATFILE_SOURCE)
+ || _XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L */
- double integral_part;
- double fractional_part;
- fractional_part = modf(access, &integral_part);
- tv[0].tv_sec = integral_part;
- tv[0].tv_usec = fractional_part * 1000000;
+#ifdef linux /* and likely others */
- fractional_part = modf(modification, &integral_part);
- tv[1].tv_sec = modification;
- tv[1].tv_usec = fmod(modification, 1000000);
+#define HAVE_BUP_STAT 1
+static PyObject *bup_stat(PyObject *self, PyObject *args)
+{
+ int rc;
+ char *filename;
- rc = lutimes(filename, tv);
- if(rc != 0)
+ if (!PyArg_ParseTuple(args, "s", &filename))
+ return NULL;
+
+ struct stat st;
+ rc = stat(filename, &st);
+ if (rc != 0)
return PyErr_SetFromErrnoWithFilename(PyExc_IOError, filename);
- return Py_True;
+ return Py_BuildValue("kkkkkkkk"
+ "(ll)"
+ "(ll)"
+ "(ll)",
+ (unsigned long) st.st_mode,
+ (unsigned long) st.st_ino,
+ (unsigned long) st.st_dev,
+ (unsigned long) st.st_nlink,
+ (unsigned long) st.st_uid,
+ (unsigned long) st.st_gid,
+ (unsigned long) st.st_rdev,
+ (unsigned long) st.st_size,
+ (long) st.st_atime,
+ (long) st.st_atim.tv_nsec,
+ (long) st.st_mtime,
+ (long) st.st_mtim.tv_nsec,
+ (long) st.st_ctime,
+ (long) st.st_ctim.tv_nsec);
}
+#define HAVE_BUP_LSTAT 1
+static PyObject *bup_lstat(PyObject *self, PyObject *args)
+{
+ int rc;
+ char *filename;
+
+ if (!PyArg_ParseTuple(args, "s", &filename))
+ return NULL;
+
+ struct stat st;
+ rc = lstat(filename, &st);
+ if (rc != 0)
+ return PyErr_SetFromErrnoWithFilename(PyExc_IOError, filename);
+
+ return Py_BuildValue("kkkkkkkk"
+ "(ll)"
+ "(ll)"
+ "(ll)",
+ (unsigned long) st.st_mode,
+ (unsigned long) st.st_ino,
+ (unsigned long) st.st_dev,
+ (unsigned long) st.st_nlink,
+ (unsigned long) st.st_uid,
+ (unsigned long) st.st_gid,
+ (unsigned long) st.st_rdev,
+ (unsigned long) st.st_size,
+ (long) st.st_atime,
+ (long) st.st_atim.tv_nsec,
+ (long) st.st_mtime,
+ (long) st.st_mtim.tv_nsec,
+ (long) st.st_ctime,
+ (long) st.st_ctim.tv_nsec);
+}
+
+
+#define HAVE_BUP_FSTAT 1
+static PyObject *bup_fstat(PyObject *self, PyObject *args)
+{
+ int rc, fd;
+
+ if (!PyArg_ParseTuple(args, "i", &fd))
+ return NULL;
+
+ struct stat st;
+ rc = fstat(fd, &st);
+ if (rc != 0)
+ return PyErr_SetFromErrno(PyExc_IOError);
+
+ return Py_BuildValue("kkkkkkkk"
+ "(ll)"
+ "(ll)"
+ "(ll)",
+ (unsigned long) st.st_mode,
+ (unsigned long) st.st_ino,
+ (unsigned long) st.st_dev,
+ (unsigned long) st.st_nlink,
+ (unsigned long) st.st_uid,
+ (unsigned long) st.st_gid,
+ (unsigned long) st.st_rdev,
+ (unsigned long) st.st_size,
+ (long) st.st_atime,
+ (long) st.st_atim.tv_nsec,
+ (long) st.st_mtime,
+ (long) st.st_mtim.tv_nsec,
+ (long) st.st_ctime,
+ (long) st.st_ctim.tv_nsec);
+}
+
+#endif /* def linux */
+
+
static PyMethodDef helper_methods[] = {
{ "selftest", selftest, METH_VARARGS,
"Check that the rolling checksum rolls correctly (for unit tests)." },
"Count the number of matching prefix bits between two strings." },
{ "firstword", firstword, METH_VARARGS,
"Return an int corresponding to the first 32 bits of buf." },
+ { "bloom_contains", bloom_contains, METH_VARARGS,
+ "Check if a bloom filter of 2^nbits bytes contains an object" },
+ { "bloom_add", bloom_add, METH_VARARGS,
+ "Add an object to a bloom filter of 2^nbits bytes" },
{ "extract_bits", extract_bits, METH_VARARGS,
"Take the first 'nbits' bits from 'buf' and return them as an int." },
+ { "merge_into", merge_into, METH_VARARGS,
+ "Merges a bunch of idx and midx files into a single midx." },
+ { "write_idx", write_idx, METH_VARARGS,
+ "Write a PackIdxV2 file from an idx list of lists of tuples" },
{ "write_random", write_random, METH_VARARGS,
"Write random bytes to the given file descriptor" },
+ { "random_sha", random_sha, METH_VARARGS,
+ "Return a random 20-byte string" },
{ "open_noatime", open_noatime, METH_VARARGS,
"open() the given filename for read with O_NOATIME if possible" },
{ "fadvise_done", fadvise_done, METH_VARARGS,
"Inform the kernel that we're finished with earlier parts of a file" },
- { "get_linux_file_attr", py_get_linux_file_attr, METH_VARARGS,
+#ifdef linux
+ { "get_linux_file_attr", bup_get_linux_file_attr, METH_VARARGS,
"Return the Linux attributes for the given file." },
- { "set_linux_file_attr", py_set_linux_file_attr, METH_VARARGS,
+ { "set_linux_file_attr", bup_set_linux_file_attr, METH_VARARGS,
"Set the Linux attributes for the given file." },
- { "lutimes", py_lutimes, METH_VARARGS,
- "Set the access and modification times for the given file or symlink." },
+#endif
+#ifdef HAVE_BUP_UTIMENSAT
+ { "utimensat", bup_utimensat, METH_VARARGS,
+ "Change file timestamps with nanosecond precision." },
+#endif
+#ifdef HAVE_BUP_STAT
+ { "stat", bup_stat, METH_VARARGS,
+ "Extended version of stat." },
+#endif
+#ifdef HAVE_BUP_LSTAT
+ { "lstat", bup_lstat, METH_VARARGS,
+ "Extended version of lstat." },
+#endif
+#ifdef HAVE_BUP_FSTAT
+ { "fstat", bup_fstat, METH_VARARGS,
+ "Extended version of fstat." },
+#endif
{ NULL, NULL, 0, NULL }, // sentinel
};
+
PyMODINIT_FUNC init_helpers(void)
{
- Py_InitModule("_helpers", helper_methods);
+ char *e;
+ PyObject *m = Py_InitModule("_helpers", helper_methods);
+ if (m == NULL)
+ return;
+#ifdef HAVE_BUP_UTIMENSAT
+ PyModule_AddObject(m, "AT_FDCWD", Py_BuildValue("i", AT_FDCWD));
+ PyModule_AddObject(m, "AT_SYMLINK_NOFOLLOW",
+ Py_BuildValue("i", AT_SYMLINK_NOFOLLOW));
+#endif
+#ifdef HAVE_BUP_STAT
+ Py_INCREF(Py_True);
+ PyModule_AddObject(m, "_have_ns_fs_timestamps", Py_True);
+#else
+ Py_INCREF(Py_False);
+ PyModule_AddObject(m, "_have_ns_fs_timestamps", Py_False);
+#endif
+ e = getenv("BUP_FORCE_TTY");
+ istty2 = isatty(2) || (atoi(e ? e : "0") & 2);
+ unpythonize_argv();
}
projects / bup.git / blobdiff