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mariadb/storage/bdb/dist/gen_rpc.awk
jimw@mysql.com af88d67a19 Import BDB 4.4.16
2005-12-05 10:27:46 -08:00

1197 lines
32 KiB
Awk
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#
# $Id: gen_rpc.awk,v 12.4 2005/07/21 18:21:20 bostic Exp $
# Awk script for generating client/server RPC code.
#
# This awk script generates most of the RPC routines for DB client/server
# use. It also generates a template for server and client procedures. These
# functions must still be edited, but are highly stylized and the initial
# template gets you a fair way along the path).
#
# This awk script requires that these variables be set when it is called:
#
# major -- Major version number
# minor -- Minor version number
# xidsize -- size of GIDs
# client_file -- the C source file being created for client code
# ctmpl_file -- the C template file being created for client code
# server_file -- the C source file being created for server code
# stmpl_file -- the C template file being created for server code
# xdr_file -- the XDR message file created
#
# And stdin must be the input file that defines the RPC setup.
BEGIN {
if (major == "" || minor == "" || xidsize == "" ||
client_file == "" || ctmpl_file == "" ||
server_file == "" || stmpl_file == "" || xdr_file == "") {
print "Usage: gen_rpc.awk requires these variables be set:"
print "\tmajor\t-- Major version number"
print "\tminor\t-- Minor version number"
print "\txidsize\t-- GID size"
print "\tclient_file\t-- the client C source file being created"
print "\tctmpl_file\t-- the client template file being created"
print "\tserver_file\t-- the server C source file being created"
print "\tstmpl_file\t-- the server template file being created"
print "\txdr_file\t-- the XDR message file being created"
error = 1; exit
}
FS="\t\t*"
CFILE=client_file
printf("/* Do not edit: automatically built by gen_rpc.awk. */\n") \
> CFILE
TFILE = ctmpl_file
printf("/* Do not edit: automatically built by gen_rpc.awk. */\n") \
> TFILE
SFILE = server_file
printf("/* Do not edit: automatically built by gen_rpc.awk. */\n") \
> SFILE
# Server procedure template.
PFILE = stmpl_file
XFILE = xdr_file
printf("/* Do not edit: automatically built by gen_rpc.awk. */\n") \
> XFILE
nendlist = 1;
# Output headers
general_headers()
# Put out the actual illegal and no-server functions.
illegal_functions(CFILE)
}
END {
if (error == 0) {
printf("program DB_RPC_SERVERPROG {\n") >> XFILE
printf("\tversion DB_RPC_SERVERVERS {\n") >> XFILE
for (i = 1; i < nendlist; ++i)
printf("\t\t%s;\n", endlist[i]) >> XFILE
printf("\t} = %d%03d;\n", major, minor) >> XFILE
printf("} = 351457;\n") >> XFILE
obj_init("DB", "dbp", obj_db, CFILE)
obj_init("DBC", "dbc", obj_dbc, CFILE)
obj_init("DB_ENV", "dbenv", obj_dbenv, CFILE)
obj_init("DB_TXN", "txn", obj_txn, CFILE)
}
}
/^[ ]*LOCAL/ {
# LOCAL methods are ones where we don't override the handle
# method for RPC, nor is it illegal -- it's just satisfied
# locally.
next;
}
/^[ ]*NOFUNC/ {
++obj_indx;
# NOFUNC methods are illegal on the RPC client.
if ($2 ~ "^db_")
obj_illegal(obj_db, "dbp", $2, $3)
else if ($2 ~ "^dbc_")
obj_illegal(obj_dbc, "dbc", $2, $3)
else if ($2 ~ "^env_")
obj_illegal(obj_dbenv, "dbenv", $2, $3)
else if ($2 ~ "^txn_")
obj_illegal(obj_txn, "txn", $2, $3)
else {
print "unexpected handle prefix: " $2
error = 1; exit
}
next;
}
/^[ ]*BEGIN/ {
++obj_indx;
name = $2;
link_only = ret_code = 0
if ($3 == "LINKONLY")
link_only = 1
else if ($3 == "RETCODE")
ret_code = 1
funcvars = 0;
newvars = 0;
nvars = 0;
rvars = 0;
xdr_free = 0;
db_handle = 0;
dbc_handle = 0;
dbt_handle = 0;
env_handle = 0;
mp_handle = 0;
txn_handle = 0;
}
/^[ ]*ARG/ {
rpc_type[nvars] = $2;
c_type[nvars] = $3;
pr_type[nvars] = $3;
args[nvars] = $4;
func_arg[nvars] = 0;
if (rpc_type[nvars] == "LIST") {
list_type[nvars] = $5;
} else
list_type[nvars] = 0;
if (c_type[nvars] == "DBT *")
dbt_handle = 1;
else if (c_type[nvars] == "DB_ENV *") {
ctp_type[nvars] = "CT_ENV";
env_handle = 1;
env_idx = nvars;
if (nvars == 0)
obj_func("dbenv", obj_dbenv);
} else if (c_type[nvars] == "DB *") {
ctp_type[nvars] = "CT_DB";
if (db_handle != 1) {
db_handle = 1;
db_idx = nvars;
}
if (nvars == 0)
obj_func("dbp", obj_db);
} else if (c_type[nvars] == "DBC *") {
ctp_type[nvars] = "CT_CURSOR";
dbc_handle = 1;
dbc_idx = nvars;
if (nvars == 0)
obj_func("dbc", obj_dbc);
} else if (c_type[nvars] == "DB_TXN *") {
ctp_type[nvars] = "CT_TXN";
txn_handle = 1;
txn_idx = nvars;
if (nvars == 0)
obj_func("txn", obj_txn);
}
++nvars;
}
/^[ ]*FUNCPROT/ {
pr_type[nvars] = $2;
}
/^[ ]*FUNCARG/ {
rpc_type[nvars] = "IGNORE";
c_type[nvars] = $2;
args[nvars] = sprintf("func%d", funcvars);
func_arg[nvars] = 1;
++funcvars;
++nvars;
}
/^[ ]*RET/ {
ret_type[rvars] = $2;
retc_type[rvars] = $3;
retargs[rvars] = $4;
if (ret_type[rvars] == "LIST" || ret_type[rvars] == "DBT") {
xdr_free = 1;
}
if (ret_type[rvars] == "LIST") {
retlist_type[rvars] = $5;
} else
retlist_type[rvars] = 0;
ret_isarg[rvars] = 0;
++rvars;
}
/^[ ]*ARET/ {
ret_type[rvars] = $2;
rpc_type[nvars] = "IGNORE";
retc_type[rvars] = $3;
c_type[nvars] = sprintf("%s *", $3);
pr_type[nvars] = c_type[nvars];
retargs[rvars] = $4;
args[nvars] = sprintf("%sp", $4);
if (ret_type[rvars] == "LIST" || ret_type[rvars] == "DBT") {
xdr_free = 1;
}
func_arg[nvars] = 0;
if (ret_type[nvars] == "LIST") {
retlist_type[rvars] = $5;
list_type[nvars] = $5;
} else {
retlist_type[rvars] = 0;
list_type[nvars] = 0;
}
ret_isarg[rvars] = 1;
++nvars;
++rvars;
}
/^[ ]*END/ {
#
# =====================================================
# LINKONLY -- just reference the function, that's all.
#
if (link_only)
next;
#
# =====================================================
# XDR messages.
#
printf("\n") >> XFILE
printf("struct __%s_msg {\n", name) >> XFILE
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "LIST") {
if (list_type[i] == "GID") {
printf("\topaque %s<>;\n", args[i]) >> XFILE
} else {
printf("\tunsigned int %s<>;\n", args[i]) >> XFILE
}
}
if (rpc_type[i] == "ID") {
printf("\tunsigned int %scl_id;\n", args[i]) >> XFILE
}
if (rpc_type[i] == "STRING") {
printf("\tstring %s<>;\n", args[i]) >> XFILE
}
if (rpc_type[i] == "GID") {
printf("\topaque %s[%d];\n", args[i], xidsize) >> XFILE
}
if (rpc_type[i] == "INT") {
printf("\tunsigned int %s;\n", args[i]) >> XFILE
}
if (rpc_type[i] == "DBT") {
printf("\tunsigned int %sdlen;\n", args[i]) >> XFILE
printf("\tunsigned int %sdoff;\n", args[i]) >> XFILE
printf("\tunsigned int %sulen;\n", args[i]) >> XFILE
printf("\tunsigned int %sflags;\n", args[i]) >> XFILE
printf("\topaque %sdata<>;\n", args[i]) >> XFILE
}
}
printf("};\n") >> XFILE
printf("\n") >> XFILE
#
# Generate the reply message
#
printf("struct __%s_reply {\n", name) >> XFILE
printf("\t/* num return vars: %d */\n", rvars) >> XFILE
printf("\tint status;\n") >> XFILE
for (i = 0; i < rvars; ++i) {
if (ret_type[i] == "ID") {
printf("\tunsigned int %scl_id;\n", retargs[i]) >> XFILE
}
if (ret_type[i] == "STRING") {
printf("\tstring %s<>;\n", retargs[i]) >> XFILE
}
if (ret_type[i] == "INT") {
printf("\tunsigned int %s;\n", retargs[i]) >> XFILE
}
if (ret_type[i] == "DBL") {
printf("\tdouble %s;\n", retargs[i]) >> XFILE
}
if (ret_type[i] == "DBT") {
printf("\topaque %sdata<>;\n", retargs[i]) >> XFILE
}
if (ret_type[i] == "LIST") {
if (retlist_type[i] == "GID") {
printf("\topaque %s<>;\n", retargs[i]) >> XFILE
} else {
printf("\tunsigned int %s<>;\n", retargs[i]) >> XFILE
}
}
}
printf("};\n") >> XFILE
endlist[nendlist] = \
sprintf("__%s_reply __DB_%s(__%s_msg) = %d", \
name, name, name, nendlist);
nendlist++;
#
# =====================================================
# Server functions.
#
# First spit out PUBLIC prototypes for server functions.
#
printf("__%s_reply *\n", name) >> SFILE
printf("__db_%s_%d%03d__SVCSUFFIX__(msg, req)\n", \
name, major, minor) >> SFILE
printf("\t__%s_msg *msg;\n", name) >> SFILE;
printf("\tstruct svc_req *req;\n", name) >> SFILE;
printf("{\n") >> SFILE
printf("\tstatic __%s_reply reply; /* must be static */\n", \
name) >> SFILE
if (xdr_free) {
printf("\tstatic int __%s_free = 0; /* must be static */\n\n", \
name) >> SFILE
}
printf("\tCOMPQUIET(req, NULL);\n", name) >> SFILE
if (xdr_free) {
printf("\tif (__%s_free)\n", name) >> SFILE
printf("\t\txdr_free((xdrproc_t)xdr___%s_reply, (void *)&reply);\n", \
name) >> SFILE
printf("\t__%s_free = 0;\n", name) >> SFILE
printf("\n\t/* Reinitialize allocated fields */\n") >> SFILE
for (i = 0; i < rvars; ++i) {
if (ret_type[i] == "LIST") {
printf("\treply.%s.%s_val = NULL;\n", \
retargs[i], retargs[i]) >> SFILE
}
if (ret_type[i] == "DBT") {
printf("\treply.%sdata.%sdata_val = NULL;\n", \
retargs[i], retargs[i]) >> SFILE
}
}
}
need_out = 0;
#
# Compose server proc to call. Decompose message components as args.
#
printf("\n\t__%s_proc(", name) >> SFILE
sep = "";
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "IGNORE") {
continue;
}
if (rpc_type[i] == "ID") {
printf("%smsg->%scl_id", sep, args[i]) >> SFILE
}
if (rpc_type[i] == "STRING") {
printf("%s(*msg->%s == '\\0') ? NULL : msg->%s", \
sep, args[i], args[i]) >> SFILE
}
if (rpc_type[i] == "GID") {
printf("%s(u_int8_t *)msg->%s", sep, args[i]) >> SFILE
}
if (rpc_type[i] == "INT") {
printf("%smsg->%s", sep, args[i]) >> SFILE
}
if (rpc_type[i] == "LIST") {
printf("%smsg->%s.%s_val", \
sep, args[i], args[i]) >> SFILE
printf("%smsg->%s.%s_len", \
sep, args[i], args[i]) >> SFILE
}
if (rpc_type[i] == "DBT") {
printf("%smsg->%sdlen", sep, args[i]) >> SFILE
sep = ",\n\t ";
printf("%smsg->%sdoff", sep, args[i]) >> SFILE
printf("%smsg->%sulen", sep, args[i]) >> SFILE
printf("%smsg->%sflags", sep, args[i]) >> SFILE
printf("%smsg->%sdata.%sdata_val", \
sep, args[i], args[i]) >> SFILE
printf("%smsg->%sdata.%sdata_len", \
sep, args[i], args[i]) >> SFILE
}
sep = ",\n\t ";
}
printf("%s&reply", sep) >> SFILE
if (xdr_free)
printf("%s&__%s_free);\n", sep, name) >> SFILE
else
printf(");\n\n") >> SFILE
if (need_out) {
printf("\nout:\n") >> SFILE
}
printf("\treturn (&reply);\n") >> SFILE
printf("}\n\n") >> SFILE
#
# =====================================================
# Generate Procedure Template Server code
#
# Spit out comment, prototype, function name and arg list.
printf("/* BEGIN __%s_proc */\n", name) >> PFILE
delete p;
pi = 1;
p[pi++] = sprintf("void __%s_proc __P((", name);
p[pi++] = "";
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "IGNORE")
continue;
if (rpc_type[i] == "ID") {
p[pi++] = "long";
p[pi++] = ", ";
}
if (rpc_type[i] == "STRING") {
p[pi++] = "char *";
p[pi++] = ", ";
}
if (rpc_type[i] == "GID") {
p[pi++] = "u_int8_t *";
p[pi++] = ", ";
}
if (rpc_type[i] == "INT") {
p[pi++] = "u_int32_t";
p[pi++] = ", ";
}
if (rpc_type[i] == "INTRET") {
p[pi++] = "u_int32_t *";
p[pi++] = ", ";
}
if (rpc_type[i] == "LIST" && list_type[i] == "GID") {
p[pi++] = "u_int8_t *";
p[pi++] = ", ";
p[pi++] = "u_int32_t";
p[pi++] = ", ";
}
if (rpc_type[i] == "LIST" && list_type[i] == "INT") {
p[pi++] = "u_int32_t *";
p[pi++] = ", ";
p[pi++] = "u_int32_t";
p[pi++] = ", ";
}
if (rpc_type[i] == "LIST" && list_type[i] == "ID") {
p[pi++] = "u_int32_t *";
p[pi++] = ", ";
p[pi++] = "u_int32_t";
p[pi++] = ", ";
}
if (rpc_type[i] == "DBT") {
p[pi++] = "u_int32_t";
p[pi++] = ", ";
p[pi++] = "u_int32_t";
p[pi++] = ", ";
p[pi++] = "u_int32_t";
p[pi++] = ", ";
p[pi++] = "u_int32_t";
p[pi++] = ", ";
p[pi++] = "void *";
p[pi++] = ", ";
p[pi++] = "u_int32_t";
p[pi++] = ", ";
}
}
p[pi++] = sprintf("__%s_reply *", name);
if (xdr_free) {
p[pi++] = ", ";
p[pi++] = "int *));";
} else {
p[pi++] = "";
p[pi++] = "));";
}
p[pi++] = "";
printf("void\n") >> PFILE
printf("__%s_proc(", name) >> PFILE
sep = "";
argcount = 0;
for (i = 0; i < nvars; ++i) {
argcount++;
split_lines();
if (argcount == 0) {
sep = "";
}
if (rpc_type[i] == "IGNORE")
continue;
if (rpc_type[i] == "ID") {
printf("%s%scl_id", sep, args[i]) >> PFILE
}
if (rpc_type[i] == "STRING") {
printf("%s%s", sep, args[i]) >> PFILE
}
if (rpc_type[i] == "GID") {
printf("%s%s", sep, args[i]) >> PFILE
}
if (rpc_type[i] == "INT") {
printf("%s%s", sep, args[i]) >> PFILE
}
if (rpc_type[i] == "INTRET") {
printf("%s%s", sep, args[i]) >> PFILE
}
if (rpc_type[i] == "LIST") {
printf("%s%s", sep, args[i]) >> PFILE
argcount++;
split_lines();
if (argcount == 0) {
sep = "";
} else {
sep = ", ";
}
printf("%s%slen", sep, args[i]) >> PFILE
}
if (rpc_type[i] == "DBT") {
printf("%s%sdlen", sep, args[i]) >> PFILE
sep = ", ";
argcount++;
split_lines();
if (argcount == 0) {
sep = "";
} else {
sep = ", ";
}
printf("%s%sdoff", sep, args[i]) >> PFILE
argcount++;
split_lines();
if (argcount == 0) {
sep = "";
} else {
sep = ", ";
}
printf("%s%sulen", sep, args[i]) >> PFILE
argcount++;
split_lines();
if (argcount == 0) {
sep = "";
} else {
sep = ", ";
}
printf("%s%sflags", sep, args[i]) >> PFILE
argcount++;
split_lines();
if (argcount == 0) {
sep = "";
} else {
sep = ", ";
}
printf("%s%sdata", sep, args[i]) >> PFILE
argcount++;
split_lines();
if (argcount == 0) {
sep = "";
} else {
sep = ", ";
}
printf("%s%ssize", sep, args[i]) >> PFILE
}
sep = ", ";
}
printf("%sreplyp",sep) >> PFILE
if (xdr_free) {
printf("%sfreep)\n",sep) >> PFILE
} else {
printf(")\n") >> PFILE
}
#
# Spit out arg types/names;
#
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "ID") {
printf("\tunsigned int %scl_id;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "STRING") {
printf("\tchar *%s;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "GID") {
printf("\tu_int8_t *%s;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "INT") {
printf("\tu_int32_t %s;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "LIST" && list_type[i] == "GID") {
printf("\tu_int8_t * %s;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "LIST" && list_type[i] == "INT") {
printf("\tu_int32_t * %s;\n", args[i]) >> PFILE
printf("\tu_int32_t %ssize;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "LIST" && list_type[i] == "ID") {
printf("\tu_int32_t * %s;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "LIST") {
printf("\tu_int32_t %slen;\n", args[i]) >> PFILE
}
if (rpc_type[i] == "DBT") {
printf("\tu_int32_t %sdlen;\n", args[i]) >> PFILE
printf("\tu_int32_t %sdoff;\n", args[i]) >> PFILE
printf("\tu_int32_t %sulen;\n", args[i]) >> PFILE
printf("\tu_int32_t %sflags;\n", args[i]) >> PFILE
printf("\tvoid *%sdata;\n", args[i]) >> PFILE
printf("\tu_int32_t %ssize;\n", args[i]) >> PFILE
}
}
printf("\t__%s_reply *replyp;\n",name) >> PFILE
if (xdr_free) {
printf("\tint * freep;\n") >> PFILE
}
printf("/* END __%s_proc */\n", name) >> PFILE
#
# Function body
#
printf("{\n") >> PFILE
printf("\tint ret;\n") >> PFILE
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "ID") {
printf("\t%s %s;\n", c_type[i], args[i]) >> PFILE
printf("\tct_entry *%s_ctp;\n", args[i]) >> PFILE
}
}
printf("\n") >> PFILE
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "ID") {
printf("\tACTIVATE_CTP(%s_ctp, %scl_id, %s);\n", \
args[i], args[i], ctp_type[i]) >> PFILE
printf("\t%s = (%s)%s_ctp->ct_anyp;\n", \
args[i], c_type[i], args[i]) >> PFILE
}
}
printf("\n\t/*\n\t * XXX Code goes here\n\t */\n\n") >> PFILE
printf("\treplyp->status = ret;\n") >> PFILE
printf("\treturn;\n") >> PFILE
printf("}\n\n") >> PFILE
#
# =====================================================
# Generate Client code
#
# Spit out PUBLIC prototypes.
#
delete p;
pi = 1;
p[pi++] = sprintf("int __dbcl_%s __P((", name);
p[pi++] = "";
for (i = 0; i < nvars; ++i) {
p[pi++] = pr_type[i];
p[pi++] = ", ";
}
p[pi - 1] = "";
p[pi] = "));";
proto_format(p, CFILE);
#
# Spit out function name/args.
#
printf("int\n") >> CFILE
printf("__dbcl_%s(", name) >> CFILE
sep = "";
for (i = 0; i < nvars; ++i) {
printf("%s%s", sep, args[i]) >> CFILE
sep = ", ";
}
printf(")\n") >> CFILE
for (i = 0; i < nvars; ++i)
if (func_arg[i] == 0)
printf("\t%s %s;\n", c_type[i], args[i]) >> CFILE
else
printf("\t%s;\n", c_type[i]) >> CFILE
printf("{\n") >> CFILE
printf("\tCLIENT *cl;\n") >> CFILE
printf("\t__%s_msg msg;\n", name) >> CFILE
printf("\t__%s_reply *replyp = NULL;\n", name) >> CFILE;
printf("\tint ret;\n") >> CFILE
if (!env_handle)
printf("\tDB_ENV *dbenv;\n") >> CFILE
#
# If we are managing a list, we need a few more vars.
#
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "LIST") {
printf("\t%s %sp;\n", c_type[i], args[i]) >> CFILE
printf("\tint %si;\n", args[i]) >> CFILE
if (list_type[i] == "GID")
printf("\tu_int8_t ** %sq;\n", args[i]) >> CFILE
else
printf("\tu_int32_t * %sq;\n", args[i]) >> CFILE
}
}
printf("\n") >> CFILE
printf("\tret = 0;\n") >> CFILE
if (!env_handle) {
if (db_handle)
printf("\tdbenv = %s->dbenv;\n", args[db_idx]) >> CFILE
else if (dbc_handle)
printf("\tdbenv = %s->dbp->dbenv;\n", \
args[dbc_idx]) >> CFILE
else if (txn_handle)
printf("\tdbenv = %s->mgrp->dbenv;\n", \
args[txn_idx]) >> CFILE
else
printf("\tdbenv = NULL;\n") >> CFILE
printf("\tif (dbenv == NULL || !RPC_ON(dbenv))\n") >> CFILE
printf("\t\treturn (__dbcl_noserver(NULL));\n") >> CFILE
} else {
printf("\tif (%s == NULL || !RPC_ON(%s))\n", \
args[env_idx], args[env_idx]) >> CFILE
printf("\t\treturn (__dbcl_noserver(%s));\n", \
args[env_idx]) >> CFILE
}
printf("\n") >> CFILE
printf("\tcl = (CLIENT *)%s->cl_handle;\n\n", \
env_handle ? args[env_idx] : "dbenv") >> CFILE
#
# If there is a function arg, check that it is NULL
#
for (i = 0; i < nvars; ++i) {
if (func_arg[i] != 1)
continue;
printf("\tif (%s != NULL) {\n", args[i]) >> CFILE
if (!env_handle) {
printf("\t\t__db_err(dbenv, ") >> CFILE
} else {
printf("\t\t__db_err(%s, ", args[env_idx]) >> CFILE
}
printf("\"User functions not supported in RPC\");\n") >> CFILE
printf("\t\treturn (EINVAL);\n\t}\n") >> CFILE
}
#
# Compose message components
#
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "ID") {
# We don't need to check for a NULL DB_ENV *, because
# we already checked for it. I frankly couldn't care
# less, but lint gets all upset at the wasted cycles.
if (c_type[i] != "DB_ENV *") {
printf("\tif (%s == NULL)\n", args[i]) >> CFILE
printf("\t\tmsg.%scl_id = 0;\n\telse\n", \
args[i]) >> CFILE
indent = "\t\t";
} else
indent = "\t";
if (c_type[i] == "DB_TXN *") {
printf("%smsg.%scl_id = %s->txnid;\n", \
indent, args[i], args[i]) >> CFILE
} else {
printf("%smsg.%scl_id = %s->cl_id;\n", \
indent, args[i], args[i]) >> CFILE
}
}
if (rpc_type[i] == "GID") {
printf("\tmemcpy(msg.%s, %s, %d);\n", \
args[i], args[i], xidsize) >> CFILE
}
if (rpc_type[i] == "INT") {
printf("\tmsg.%s = %s;\n", args[i], args[i]) >> CFILE
}
if (rpc_type[i] == "STRING") {
printf("\tif (%s == NULL)\n", args[i]) >> CFILE
printf("\t\tmsg.%s = \"\";\n", args[i]) >> CFILE
printf("\telse\n") >> CFILE
printf("\t\tmsg.%s = (char *)%s;\n", \
args[i], args[i]) >> CFILE
}
if (rpc_type[i] == "DBT") {
printf("\tmsg.%sdlen = %s->dlen;\n", \
args[i], args[i]) >> CFILE
printf("\tmsg.%sdoff = %s->doff;\n", \
args[i], args[i]) >> CFILE
printf("\tmsg.%sulen = %s->ulen;\n", \
args[i], args[i]) >> CFILE
printf("\tmsg.%sflags = %s->flags;\n", \
args[i], args[i]) >> CFILE
printf("\tmsg.%sdata.%sdata_val = %s->data;\n", \
args[i], args[i], args[i]) >> CFILE
printf("\tmsg.%sdata.%sdata_len = %s->size;\n", \
args[i], args[i], args[i]) >> CFILE
}
if (rpc_type[i] == "LIST") {
printf("\tfor (%si = 0, %sp = %s; *%sp != 0; ", \
args[i], args[i], args[i], args[i]) >> CFILE
printf(" %si++, %sp++)\n\t\t;\n", args[i], args[i]) \
>> CFILE
#
# If we are an array of ints, *_len is how many
# elements. If we are a GID, *_len is total bytes.
#
printf("\tmsg.%s.%s_len = %si",args[i], args[i], \
args[i]) >> CFILE
if (list_type[i] == "GID")
printf(" * %d;\n", xidsize) >> CFILE
else
printf(";\n") >> CFILE
printf("\tif ((ret = __os_calloc(") >> CFILE
if (!env_handle)
printf("dbenv,\n") >> CFILE
else
printf("%s,\n", args[env_idx]) >> CFILE
printf("\t msg.%s.%s_len,", \
args[i], args[i]) >> CFILE
if (list_type[i] == "GID")
printf(" 1,") >> CFILE
else
printf(" sizeof(u_int32_t),") >> CFILE
printf(" &msg.%s.%s_val)) != 0)\n",\
args[i], args[i], args[i], args[i]) >> CFILE
printf("\t\treturn (ret);\n") >> CFILE
printf("\tfor (%sq = msg.%s.%s_val, %sp = %s; ", \
args[i], args[i], args[i], \
args[i], args[i]) >> CFILE
printf("%si--; %sq++, %sp++)\n", \
args[i], args[i], args[i]) >> CFILE
printf("\t\t*%sq = ", args[i]) >> CFILE
if (list_type[i] == "GID")
printf("*%sp;\n", args[i]) >> CFILE
if (list_type[i] == "ID")
printf("(*%sp)->cl_id;\n", args[i]) >> CFILE
if (list_type[i] == "INT")
printf("*%sp;\n", args[i]) >> CFILE
}
}
printf("\n") >> CFILE
printf("\treplyp = __db_%s_%d%03d(&msg, cl);\n", name, major, minor) \
>> CFILE
for (i = 0; i < nvars; ++i) {
if (rpc_type[i] == "LIST") {
printf("\t__os_free(") >> CFILE
if (!env_handle)
printf("dbenv, ") >> CFILE
else
printf("%s, ", args[env_idx]) >> CFILE
printf("msg.%s.%s_val);\n", args[i], args[i]) >> CFILE
}
}
printf("\tif (replyp == NULL) {\n") >> CFILE
if (!env_handle) {
printf("\t\t__db_err(dbenv, ") >> CFILE
printf("clnt_sperror(cl, \"Berkeley DB\"));\n") >> CFILE
} else {
printf("\t\t__db_err(%s, ", args[env_idx]) >> CFILE
printf("clnt_sperror(cl, \"Berkeley DB\"));\n") >> CFILE
}
printf("\t\tret = DB_NOSERVER;\n") >> CFILE
printf("\t\tgoto out;\n") >> CFILE
printf("\t}\n") >> CFILE
if (ret_code == 0) {
printf("\tret = replyp->status;\n") >> CFILE
#
# Set any arguments that are returned
#
for (i = 0; i < rvars; ++i) {
if (ret_isarg[i]) {
printf("\tif (%sp != NULL)\n", \
retargs[i]) >> CFILE;
printf("\t\t*%sp = replyp->%s;\n", \
retargs[i], retargs[i]) >> CFILE;
}
}
} else {
printf("\tret = __dbcl_%s_ret(", name) >> CFILE
sep = "";
for (i = 0; i < nvars; ++i) {
printf("%s%s", sep, args[i]) >> CFILE
sep = ", ";
}
printf("%sreplyp);\n", sep) >> CFILE
}
printf("out:\n") >> CFILE
#
# Free reply if there was one.
#
printf("\tif (replyp != NULL)\n") >> CFILE
printf("\t\txdr_free((xdrproc_t)xdr___%s_reply,",name) >> CFILE
printf(" (void *)replyp);\n") >> CFILE
printf("\treturn (ret);\n") >> CFILE
printf("}\n\n") >> CFILE
#
# Generate Client Template code
#
if (ret_code) {
#
# If we are doing a list, write prototypes
#
delete p;
pi = 1;
p[pi++] = sprintf("int __dbcl_%s_ret __P((", name);
p[pi++] = "";
for (i = 0; i < nvars; ++i) {
p[pi++] = pr_type[i];
p[pi++] = ", ";
}
p[pi] = sprintf("__%s_reply *));", name);
proto_format(p, TFILE);
printf("int\n") >> TFILE
printf("__dbcl_%s_ret(", name) >> TFILE
sep = "";
for (i = 0; i < nvars; ++i) {
printf("%s%s", sep, args[i]) >> TFILE
sep = ", ";
}
printf("%sreplyp)\n",sep) >> TFILE
for (i = 0; i < nvars; ++i)
if (func_arg[i] == 0)
printf("\t%s %s;\n", c_type[i], args[i]) \
>> TFILE
else
printf("\t%s;\n", c_type[i]) >> TFILE
printf("\t__%s_reply *replyp;\n", name) >> TFILE;
printf("{\n") >> TFILE
printf("\tint ret;\n") >> TFILE
#
# Local vars in template
#
for (i = 0; i < rvars; ++i) {
if (ret_type[i] == "ID" || ret_type[i] == "STRING" ||
ret_type[i] == "INT" || ret_type[i] == "DBL") {
printf("\t%s %s;\n", \
retc_type[i], retargs[i]) >> TFILE
} else if (ret_type[i] == "LIST") {
if (retlist_type[i] == "GID")
printf("\tu_int8_t *__db_%s;\n", \
retargs[i]) >> TFILE
if (retlist_type[i] == "ID" ||
retlist_type[i] == "INT")
printf("\tu_int32_t *__db_%s;\n", \
retargs[i]) >> TFILE
} else {
printf("\t/* %s %s; */\n", \
ret_type[i], retargs[i]) >> TFILE
}
}
#
# Client return code
#
printf("\n") >> TFILE
printf("\tif (replyp->status != 0)\n") >> TFILE
printf("\t\treturn (replyp->status);\n") >> TFILE
for (i = 0; i < rvars; ++i) {
varname = "";
if (ret_type[i] == "ID") {
varname = sprintf("%scl_id", retargs[i]);
}
if (ret_type[i] == "STRING") {
varname = retargs[i];
}
if (ret_type[i] == "INT" || ret_type[i] == "DBL") {
varname = retargs[i];
}
if (ret_type[i] == "DBT") {
varname = sprintf("%sdata", retargs[i]);
}
if (ret_type[i] == "ID" || ret_type[i] == "STRING" ||
ret_type[i] == "INT" || ret_type[i] == "DBL") {
printf("\t%s = replyp->%s;\n", \
retargs[i], varname) >> TFILE
} else if (ret_type[i] == "LIST") {
printf("\n\t/*\n") >> TFILE
printf("\t * XXX Handle list\n") >> TFILE
printf("\t */\n\n") >> TFILE
} else {
printf("\t/* Handle replyp->%s; */\n", \
varname) >> TFILE
}
}
printf("\n\t/*\n\t * XXX Code goes here\n\t */\n\n") >> TFILE
printf("\treturn (replyp->status);\n") >> TFILE
printf("}\n\n") >> TFILE
}
}
function general_headers()
{
printf("#include \"db_config.h\"\n") >> CFILE
printf("\n") >> CFILE
printf("#ifndef NO_SYSTEM_INCLUDES\n") >> CFILE
printf("#include <sys/types.h>\n") >> CFILE
printf("\n") >> CFILE
printf("#include <rpc/rpc.h>\n") >> CFILE
printf("\n") >> CFILE
printf("#include <string.h>\n") >> CFILE
printf("#endif\n") >> CFILE
printf("\n") >> CFILE
printf("#include \"db_server.h\"\n") >> CFILE
printf("\n") >> CFILE
printf("#include \"db_int.h\"\n") >> CFILE
printf("#include \"dbinc/txn.h\"\n") >> CFILE
printf("#include \"dbinc_auto/rpc_client_ext.h\"\n") >> CFILE
printf("\n") >> CFILE
printf("#include \"db_config.h\"\n") >> TFILE
printf("\n") >> TFILE
printf("#ifndef NO_SYSTEM_INCLUDES\n") >> TFILE
printf("#include <sys/types.h>\n") >> TFILE
printf("\n") >> TFILE
printf("#include <string.h>\n") >> TFILE
printf("#endif\n") >> TFILE
printf("#include \"db_int.h\"\n") >> TFILE
printf("#include \"dbinc/txn.h\"\n") >> TFILE
printf("\n") >> TFILE
printf("#include \"db_config.h\"\n") >> SFILE
printf("\n") >> SFILE
printf("#ifndef NO_SYSTEM_INCLUDES\n") >> SFILE
printf("#include <sys/types.h>\n") >> SFILE
printf("\n") >> SFILE
printf("#include <rpc/rpc.h>\n") >> SFILE
printf("\n") >> SFILE
printf("#include <string.h>\n") >> SFILE
printf("#endif\n") >> SFILE
printf("\n") >> SFILE
printf("#include \"db_server.h\"\n") >> SFILE
printf("\n") >> SFILE
printf("#include \"db_int.h\"\n") >> SFILE
printf("#include \"dbinc/db_server_int.h\"\n") >> SFILE
printf("#include \"dbinc_auto/rpc_server_ext.h\"\n") >> SFILE
printf("\n") >> SFILE
printf("#include \"db_config.h\"\n") >> PFILE
printf("\n") >> PFILE
printf("#ifndef NO_SYSTEM_INCLUDES\n") >> PFILE
printf("#include <sys/types.h>\n") >> PFILE
printf("\n") >> PFILE
printf("#include <rpc/rpc.h>\n") >> PFILE
printf("\n") >> PFILE
printf("#include <string.h>\n") >> PFILE
printf("#endif\n") >> PFILE
printf("\n") >> PFILE
printf("#include \"db_server.h\"\n") >> PFILE
printf("\n") >> PFILE
printf("#include \"db_int.h\"\n") >> PFILE
printf("#include \"dbinc/db_server_int.h\"\n") >> PFILE
printf("\n") >> PFILE
}
#
# illegal_functions --
# Output general illegal-call functions
function illegal_functions(OUTPUT)
{
printf("static int __dbcl_dbp_illegal __P((DB *));\n") >> OUTPUT
printf("static int __dbcl_noserver __P((DB_ENV *));\n") >> OUTPUT
printf("static int __dbcl_txn_illegal __P((DB_TXN *));\n") >> OUTPUT
printf("\n") >> OUTPUT
printf("static int\n") >> OUTPUT
printf("__dbcl_noserver(dbenv)\n") >> OUTPUT
printf("\tDB_ENV *dbenv;\n") >> OUTPUT
printf("{\n\t__db_err(dbenv,") >> OUTPUT
printf(" \"No Berkeley DB RPC server environment\");\n") >> OUTPUT
printf("\treturn (DB_NOSERVER);\n") >> OUTPUT
printf("}\n\n") >> OUTPUT
printf("/*\n") >> OUTPUT
printf(" * __dbcl_dbenv_illegal --\n") >> OUTPUT
printf(" * DB_ENV method not supported under RPC.\n") >> OUTPUT
printf(" *\n") >> OUTPUT
printf(" * PUBLIC: int __dbcl_dbenv_illegal __P((DB_ENV *));\n")\
>> OUTPUT
printf(" */\n") >> OUTPUT
printf("int\n") >> OUTPUT
printf("__dbcl_dbenv_illegal(dbenv)\n") >> OUTPUT
printf("\tDB_ENV *dbenv;\n") >> OUTPUT
printf("{\n\t__db_err(dbenv,") >> OUTPUT
printf("\n\t \"Interface not supported by ") >> OUTPUT
printf("Berkeley DB RPC client environments\");\n") >> OUTPUT
printf("\treturn (DB_OPNOTSUP);\n") >> OUTPUT
printf("}\n\n") >> OUTPUT
printf("/*\n") >> OUTPUT
printf(" * __dbcl_dbp_illegal --\n") >> OUTPUT
printf(" * DB method not supported under RPC.\n") >> OUTPUT
printf(" */\n") >> OUTPUT
printf("static int\n") >> OUTPUT
printf("__dbcl_dbp_illegal(dbp)\n") >> OUTPUT
printf("\tDB *dbp;\n") >> OUTPUT
printf("{\n\treturn (__dbcl_dbenv_illegal(dbp->dbenv));\n") >> OUTPUT
printf("}\n\n") >> OUTPUT
printf("/*\n") >> OUTPUT
printf(" * __dbcl_txn_illegal --\n") >> OUTPUT
printf(" * DB_TXN method not supported under RPC.\n") >> OUTPUT
printf(" */\n") >> OUTPUT
printf("static int\n__dbcl_txn_illegal(txn)\n") >> OUTPUT
printf("\tDB_TXN *txn;\n") >> OUTPUT
printf("{\n\treturn (__dbcl_dbenv_illegal(txn->mgrp->dbenv));\n")\
>> OUTPUT
printf("}\n\n") >> OUTPUT
}
function obj_func(v, l)
{
# Ignore db_create -- there's got to be something cleaner, but I
# don't want to rewrite rpc.src right now.
if (name == "db_create")
return;
if (name == "env_create")
return;
# Strip off the leading prefix for the method name -- there's got to
# be something cleaner, but I don't want to rewrite rpc.src right now.
len = length(name);
i = index(name, "_");
l[obj_indx] = sprintf("\t%s->%s = __dbcl_%s;",
v, substr(name, i + 1, len - i), name);
}
function obj_illegal(l, handle, method, proto)
{
# All of the functions return an int, with one exception. Hack
# to make that work.
type = method == "db_get_mpf" ? "DB_MPOOLFILE *" : "int"
# Strip off the leading prefix for the method name -- there's got to
# be something cleaner, but I don't want to rewrite rpc.src right now.
len = length(method);
i = index(method, "_");
l[obj_indx] =\
sprintf("\t%s->%s =\n\t (%s (*)(",\
handle, substr(method, i + 1, len - i), type)\
proto\
sprintf("))\n\t __dbcl_%s_illegal;", handle);
}
function obj_init(obj, v, list, OUTPUT) {
printf("/*\n") >> OUTPUT
printf(" * __dbcl_%s_init --\n", v) >> OUTPUT
printf(" *\tInitialize %s handle methods.\n", obj) >> OUTPUT
printf(" *\n") >> OUTPUT
printf(\
" * PUBLIC: void __dbcl_%s_init __P((%s *));\n", v, obj) >> OUTPUT
printf(" */\n") >> OUTPUT
printf("void\n") >> OUTPUT
printf("__dbcl_%s_init(%s)\n", v, v) >> OUTPUT
printf("\t%s *%s;\n", obj, v) >> OUTPUT
printf("{\n") >> OUTPUT
for (i = 1; i < obj_indx; ++i) {
if (i in list)
print list[i] >> OUTPUT
}
printf("\treturn;\n}\n\n") >> OUTPUT
}
#
# split_lines --
# Add line separators to pretty-print the output.
function split_lines() {
if (argcount > 3) {
# Reset the counter, remove any trailing whitespace from
# the separator.
argcount = 0;
sub("[ ]$", "", sep)
printf("%s\n\t\t", sep) >> PFILE
}
}
# proto_format --
# Pretty-print a function prototype.
function proto_format(p, OUTPUT)
{
printf("/*\n") >> OUTPUT;
s = "";
for (i = 1; i in p; ++i)
s = s p[i];
t = " * PUBLIC: "
if (length(s) + length(t) < 80)
printf("%s%s", t, s) >> OUTPUT;
else {
split(s, p, "__P");
len = length(t) + length(p[1]);
printf("%s%s", t, p[1]) >> OUTPUT
n = split(p[2], comma, ",");
comma[1] = "__P" comma[1];
for (i = 1; i <= n; i++) {
if (len + length(comma[i]) > 75) {
printf("\n * PUBLIC: ") >> OUTPUT;
len = 0;
}
printf("%s%s", comma[i], i == n ? "" : ",") >> OUTPUT;
len += length(comma[i]);
}
}
printf("\n */\n") >> OUTPUT;
}
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