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-rwxr-xr-xxlators/experimental/fdl/src/gen_fdl.py328
1 files changed, 0 insertions, 328 deletions
diff --git a/xlators/experimental/fdl/src/gen_fdl.py b/xlators/experimental/fdl/src/gen_fdl.py
deleted file mode 100755
index 7f6b1aa..0000000
--- a/xlators/experimental/fdl/src/gen_fdl.py
+++ /dev/null
@@ -1,328 +0,0 @@
-#!/usr/bin/python
-
-import os
-import sys
-
-curdir = os.path.dirname (sys.argv[0])
-gendir = os.path.join (curdir, '../../../../libglusterfs/src')
-sys.path.append (gendir)
-from generator import ops, fop_subs, cbk_subs, generate
-
-# Generation occurs in three stages. In this case, it actually makes more
-# sense to discuss them in the *opposite* order of that in which they
-# actually happen.
-#
-# Stage 3 is to insert all of the generated code into a file, replacing the
-# "#pragma generate" that's already there. The file can thus contain all
-# sorts of stuff that's not specific to one fop, either before or after the
-# generated code as appropriate.
-#
-# Stage 2 is to generate all of the code *for a particular fop*, using a
-# string-valued template plus a table of substitution values. Most of these
-# are built in to the generator itself. However, we also add a couple that
-# are specific to this particular translator - LEN_CODE and SER_CODE. These
-# are per-fop functions to get the length or the contents (respectively) of
-# what we'll put in the log. As with stage 3 allowing per-file boilerplate
-# before and after generated code, this allows per-fop boilerplate before and
-# after generated code.
-#
-# Stage 1, therefore, is to create the LEN_CODE and SER_CODE substitutions for
-# each fop, and put them in the same table where e.g. NAME and SHORT_ARGS
-# already are. We do this by looking at the fop-description table in the
-# generator module, then doing out own template substitution to plug each
-# specific argument name into another string-valued template.
-#
-# So, what does this leave us with in terms of variables and files?
-#
-# For stage 1, we have a series of LEN_*_TEMPLATE and SERLZ_*_TEMPLATE
-# strings, which are used to generate the length and serialization code for
-# each argument type.
-#
-# For stage 2, we have a bunch of *_TEMPLATE strings (no LEN_ or SERLZ_
-# prefix), which are used (along with the output from stage 1) to generate
-# whole functions.
-#
-# For stage 3, we have a whole separate file (fdl_tmpl.c) into which we insert
-# the collection of all functions defined in stage 2.
-
-
-LEN_TEMPLATE = """
-void
-fdl_len_@NAME@ (call_stub_t *stub)
-{
- uint32_t meta_len = sizeof (event_header_t);
- uint32_t data_len = 0;
-
- /* TBD: global stuff, e.g. uid/gid */
-@LEN_CODE@
-
- /* TBD: pad extension length */
- stub->jnl_meta_len = meta_len;
- stub->jnl_data_len = data_len;
-}
-"""
-
-SER_TEMPLATE = """
-void
-fdl_serialize_@NAME@ (call_stub_t *stub, char *meta_buf, char *data_buf)
-{
- event_header_t *eh;
- unsigned long offset = 0;
-
- /* TBD: word size/endianness */
- eh = (event_header_t *)meta_buf;
- eh->event_type = NEW_REQUEST;
- eh->fop_type = GF_FOP_@UPNAME@;
- eh->request_id = 0; // TBD
- meta_buf += sizeof (*eh);
-@SER_CODE@
- /* TBD: pad extension length */
- eh->ext_length = offset;
-}
-"""
-
-CBK_TEMPLATE = """
-int32_t
-fdl_@NAME@_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno,
- @LONG_ARGS@)
-{
- STACK_UNWIND_STRICT (@NAME@, frame, op_ret, op_errno,
- @SHORT_ARGS@);
- return 0;
-}
-"""
-
-CONTINUE_TEMPLATE = """
-int32_t
-fdl_@NAME@_continue (call_frame_t *frame, xlator_t *this,
- @LONG_ARGS@)
-{
- STACK_WIND (frame, fdl_@NAME@_cbk,
- FIRST_CHILD(this), FIRST_CHILD(this)->fops->@NAME@,
- @SHORT_ARGS@);
- return 0;
-}
-
-"""
-
-FOP_TEMPLATE = """
-int32_t
-fdl_@NAME@ (call_frame_t *frame, xlator_t *this,
- @LONG_ARGS@)
-{
- call_stub_t *stub;
-
- stub = fop_@NAME@_stub (frame, default_@NAME@,
- @SHORT_ARGS@);
- fdl_len_@NAME@ (stub);
- stub->serialize = fdl_serialize_@NAME@;
- fdl_enqueue (this, stub);
-
- return 0;
-}
-"""
-
-LEN_DICT_TEMPLATE = """
- if (@SRC@) {
- data_pair_t *memb;
- for (memb = @SRC@->members_list; memb; memb = memb->next) {
- meta_len += sizeof(int);
- meta_len += strlen(memb->key) + 1;
- meta_len += sizeof(int);
- meta_len += memb->value->len;
- }
- }
- meta_len += sizeof(int);
-"""
-
-LEN_GFID_TEMPLATE = """
- meta_len += 16;
-"""
-
-LEN_INTEGER_TEMPLATE = """
- meta_len += sizeof (@SRC@);
-"""
-
-# 16 for gfid, 16 for pargfid, 1 for flag, 0/1 for terminating NUL
-LEN_LOC_TEMPLATE = """
- if (@SRC@.name) {
- meta_len += (strlen (@SRC@.name) + 34);
- } else {
- meta_len += 33;
- }
-"""
-
-LEN_STRING_TEMPLATE = """
- if (@SRC@) {
- meta_len += (strlen (@SRC@) + 1);
- } else {
- meta_len += 1;
- }
-"""
-
-LEN_VECTOR_TEMPLATE = """
- meta_len += sizeof(size_t);
- data_len += iov_length (@VEC@, @CNT@);
-"""
-
-LEN_IATT_TEMPLATE = """
- meta_len += sizeof(@SRC@.ia_prot);
- meta_len += sizeof(@SRC@.ia_uid);
- meta_len += sizeof(@SRC@.ia_gid);
- meta_len += sizeof(@SRC@.ia_atime);
- meta_len += sizeof(@SRC@.ia_atime_nsec);
- meta_len += sizeof(@SRC@.ia_mtime);
- meta_len += sizeof(@SRC@.ia_mtime_nsec);
-"""
-
-SERLZ_DICT_TEMPLATE = """
- if (@SRC@) {
- data_pair_t *memb;
- for (memb = @SRC@->members_list; memb; memb = memb->next) {
- *((int *)(meta_buf+offset)) = strlen(memb->key) + 1;
- offset += sizeof(int);
- strcpy (meta_buf+offset, memb->key);
- offset += strlen(memb->key) + 1;
- *((int *)(meta_buf+offset)) = memb->value->len;
- offset += sizeof(int);
- memcpy (meta_buf+offset, memb->value->data, memb->value->len);
- offset += memb->value->len;
- }
- }
- *((int *)(meta_buf+offset)) = 0;
- offset += sizeof(int);
-"""
-
-SERLZ_GFID_TEMPLATE = """
- memcpy (meta_buf+offset, @SRC@->inode->gfid, 16);
- offset += 16;
-"""
-
-SERLZ_INTEGER_TEMPLATE = """
- memcpy (meta_buf+offset, &@SRC@, sizeof(@SRC@));
- offset += sizeof(@SRC@);
-"""
-
-SERLZ_LOC_TEMPLATE = """
- memcpy (meta_buf+offset, @SRC@.gfid, 16);
- offset += 16;
- memcpy (meta_buf+offset, @SRC@.pargfid, 16);
- offset += 16;
- if (@SRC@.name) {
- *(meta_buf+offset) = 1;
- ++offset;
- strcpy (meta_buf+offset, @SRC@.name);
- offset += (strlen (@SRC@.name) + 1);
- } else {
- *(meta_buf+offset) = 0;
- ++offset;
- }
-"""
-
-SERLZ_STRING_TEMPLATE = """
- if (@SRC@) {
- *(meta_buf+offset) = 1;
- ++offset;
- strcpy (meta_buf+offset, @SRC@);
- offset += strlen(@SRC@);
- } else {
- *(meta_buf+offset) = 0;
- ++offset;
- }
-"""
-
-SERLZ_VECTOR_TEMPLATE = """
- *((size_t *)(meta_buf+offset)) = iov_length (@VEC@, @CNT@);
- offset += sizeof(size_t);
- int32_t i;
- for (i = 0; i < @CNT@; ++i) {
- memcpy (data_buf, @VEC@[i].iov_base, @VEC@[i].iov_len);
- data_buf += @VEC@[i].iov_len;
- }
-"""
-
-# We don't need to save all of the fields - only those affected by chown,
-# chgrp, chmod, and utime.
-SERLZ_IATT_TEMPLATE = """
- *((ia_prot_t *)(meta_buf+offset)) = @SRC@.ia_prot;
- offset += sizeof(@SRC@.ia_prot);
- *((uint32_t *)(meta_buf+offset)) = @SRC@.ia_uid;
- offset += sizeof(@SRC@.ia_uid);
- *((uint32_t *)(meta_buf+offset)) = @SRC@.ia_gid;
- offset += sizeof(@SRC@.ia_gid);
- *((uint32_t *)(meta_buf+offset)) = @SRC@.ia_atime;
- offset += sizeof(@SRC@.ia_atime);
- *((uint32_t *)(meta_buf+offset)) = @SRC@.ia_atime_nsec;
- offset += sizeof(@SRC@.ia_atime_nsec);
- *((uint32_t *)(meta_buf+offset)) = @SRC@.ia_mtime;
- offset += sizeof(@SRC@.ia_mtime);
- *((uint32_t *)(meta_buf+offset)) = @SRC@.ia_mtime_nsec;
- offset += sizeof(@SRC@.ia_mtime_nsec);
-"""
-
-typemap = {
- 'dict_t *': ( LEN_DICT_TEMPLATE, SERLZ_DICT_TEMPLATE),
- 'fd_t *': ( LEN_GFID_TEMPLATE, SERLZ_GFID_TEMPLATE),
- 'dev_t': ( LEN_INTEGER_TEMPLATE, SERLZ_INTEGER_TEMPLATE),
- 'gf_xattrop_flags_t': ( LEN_INTEGER_TEMPLATE, SERLZ_INTEGER_TEMPLATE),
- 'int32_t': ( LEN_INTEGER_TEMPLATE, SERLZ_INTEGER_TEMPLATE),
- 'mode_t': ( LEN_INTEGER_TEMPLATE, SERLZ_INTEGER_TEMPLATE),
- 'off_t': ( LEN_INTEGER_TEMPLATE, SERLZ_INTEGER_TEMPLATE),
- 'size_t': ( LEN_INTEGER_TEMPLATE, SERLZ_INTEGER_TEMPLATE),
- 'uint32_t': ( LEN_INTEGER_TEMPLATE, SERLZ_INTEGER_TEMPLATE),
- 'loc_t *': ( LEN_LOC_TEMPLATE, SERLZ_LOC_TEMPLATE),
- 'const char *': ( LEN_STRING_TEMPLATE, SERLZ_STRING_TEMPLATE),
- 'struct iatt *': ( LEN_IATT_TEMPLATE, SERLZ_IATT_TEMPLATE),
-}
-
-def get_special_subs (args):
- len_code = ""
- ser_code = ""
- for arg in args:
- if (arg[0] != 'fop-arg') or (len(arg) < 4):
- continue
- # Let this throw an exception if we get an unknown field name. The
- # broken build will remind whoever messed with the stub code that a
- # corresponding update is needed here.
- if arg[3] == "vector":
- # Make it as obvious as possible that this is a special case.
- len_code += LEN_VECTOR_TEMPLATE \
- .replace("@VEC@","stub->args.vector") \
- .replace("@CNT@","stub->args.count")
- ser_code += SERLZ_VECTOR_TEMPLATE \
- .replace("@VEC@","stub->args.vector") \
- .replace("@CNT@","stub->args.count")
- else:
- len_tmpl, ser_tmpl = typemap[arg[2]]
- src = "stub->args.%s" % arg[3]
- len_code += len_tmpl.replace("@SRC@",src)
- ser_code += ser_tmpl.replace("@SRC@",src)
- return len_code, ser_code
-
-def gen_fdl ():
- entrypoints = []
- for name, value in ops.iteritems():
- if "journal" not in [ x[0] for x in value ]:
- continue
- len_code, ser_code = get_special_subs(value)
- fop_subs[name]["@LEN_CODE@"] = len_code[:-1]
- fop_subs[name]["@SER_CODE@"] = ser_code[:-1]
- print generate(LEN_TEMPLATE,name,fop_subs)
- print generate(SER_TEMPLATE,name,fop_subs)
- print generate(CBK_TEMPLATE,name,cbk_subs)
- print generate(CONTINUE_TEMPLATE,name,fop_subs)
- print generate(FOP_TEMPLATE,name,fop_subs)
- entrypoints.append(name)
- print "struct xlator_fops fops = {"
- for ep in entrypoints:
- print "\t.%s = fdl_%s," % (ep, ep)
- print "};"
-
-for l in open(sys.argv[1],'r').readlines():
- if l.find('#pragma generate') != -1:
- print "/* BEGIN GENERATED CODE - DO NOT MODIFY */"
- gen_fdl()
- print "/* END GENERATED CODE */"
- else:
- print l[:-1]