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Add gencode and genconfig
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These files are used during the build process to generate
source files. They are temporary moved from ep_engine to
memcached to simplify the build process. They might be moved
back to ep_engine at a later time.

Change-Id: Iba1c07d35e84d441335806f384eda760d2690477
Reviewed-on: http://review.couchbase.org/29498
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Reviewed-by: Michael Wiederhold <mike@couchbase.com>
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@trondn
trondn committed Oct 16, 2013
1 parent b151b44 commit 90423fb
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Showing 3 changed files with 609 additions and 1 deletion.
11 changes: 10 additions & 1 deletion CMakeLists.txt
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Expand Up @@ -105,6 +105,11 @@ ADD_EXECUTABLE(memcached
daemon/thread.c)

ADD_EXECUTABLE(memcached_testapp programs/testapp.c daemon/cache.c)
ADD_EXECUTABLE(gencode programs/gencode.cc)
SET_TARGET_PROPERTIES(gencode PROPERTIES COMPILE_FLAGS -I${CMAKE_CURRENT_SOURCE_DIR}/../libvbucket/include)

ADD_EXECUTABLE(genconfig programs/genconfig.cc)
SET_TARGET_PROPERTIES(genconfig PROPERTIES COMPILE_FLAGS -I${CMAKE_CURRENT_SOURCE_DIR}/../libvbucket/include)


#
Expand All @@ -125,6 +130,10 @@ TARGET_LINK_LIBRARIES(mcd_util platform)
TARGET_LINK_LIBRARIES(memcached mcd_util cbsasl platform ${TCMALLOC_LIBRARY} ${LIBEVENT_LIBRARIES} ${COUCHBASE_NETWORK_LIBS})
TARGET_LINK_LIBRARIES(memcached_testapp mcd_util platform ${LIBEVENT_LIBRARIES} ${COUCHBASE_NETWORK_LIBS})

TARGET_LINK_LIBRARIES(gencode cJSON platform)
TARGET_LINK_LIBRARIES(genconfig cJSON platform)


IF(WIN32)
SET_TARGET_PROPERTIES(memcached PROPERTIES
LINK_FLAGS "/LIBPATH:${DEPS_LIB_DIR}")
Expand Down Expand Up @@ -169,7 +178,7 @@ SET_TARGET_PROPERTIES(fragment_rw_ops PROPERTIES INSTALL_NAME_DIR ${CMAKE_INSTAL
SET_TARGET_PROPERTIES(stdin_term_handler PROPERTIES INSTALL_NAME_DIR ${CMAKE_INSTALL_PREFIX}/lib/memcached)


INSTALL(TARGETS engine_testapp cbsasladm mcstat memcached
INSTALL(TARGETS engine_testapp cbsasladm mcstat memcached gencode genconfig
RUNTIME DESTINATION bin)

ADD_TEST(memcached-sizes memcached_sizes)
Expand Down
209 changes: 209 additions & 0 deletions programs/gencode.cc
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@@ -0,0 +1,209 @@
/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2012 Couchbase, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "config.h"
#include <cerrno>
#include <cstdlib>
#include <string.h>
#include <strings.h>
#include <cerrno>
#include <getopt.h>
#include <sys/stat.h>
#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <ctype.h>

#include "cJSON.h"

using namespace std;

/**
* Print the JSON object quoted
*/
static ostream& operator <<(ostream &out, cJSON *json)
{
char *data = cJSON_PrintUnformatted(json);
int ii = 0;

out << '"';
while (data[ii] != '\0') {
if (data[ii] == '"') {
out << '\\';
}
out << data[ii];
++ii;
}

out << '"';
free(data);
return out;
}

static void usage(void)
{
cerr << "Usage: gencode -j JSON -c cfile -h headerfile -f function"
<< endl
<< "\tThe JSON file will be read to generate the c and h file."
<< endl;
exit(EXIT_FAILURE);
}

static void str_replace_char(char* str, char toReplace, char replaceWith) {
int i;
for (i = 0; *(str + i) != '\0'; i++) {
if (*(str + i) == toReplace) {
*(str + i) = replaceWith;
}
}
}

static void all_caps(char* str) {
int i;
for (i = 0; *(str + i) != '\0'; i++) {
if (*(str + i) >= 'a' && *(str + i) <= 'z') {
*(str + i) -= 32;
}
}
}

int main(int argc, char **argv) {
int cmd;
const char *json = NULL;
const char *hfile = NULL;
const char *cfile = NULL;
const char *function = NULL;

while ((cmd = getopt(argc, argv, "j:c:h:f:")) != -1) {
switch (cmd) {
case 'j' :
json = optarg;
break;
case 'c' :
cfile = optarg;
break;
case 'h':
hfile = optarg;
break;
case 'f':
function = optarg;
break;
default:
usage();
}
}

if (json == NULL || hfile == NULL || cfile == NULL || function == NULL) {
usage();
}

struct stat st;
if (stat(json, &st) == -1) {
cerr << "Failed to look up \"" << json << "\": "
<< strerror(errno) << endl;
exit(EXIT_FAILURE);
}

char *data = new char[st.st_size + 1];
data[st.st_size] = 0;
ifstream input(json);
input.read(data, st.st_size);
input.close();

cJSON *c = cJSON_Parse(data);
if (c == NULL) {
cerr << "Failed to parse JSON.. probably syntax error" << endl;
exit(EXIT_FAILURE);
}

ofstream headerfile(hfile);
char* macro = strdup(hfile);
str_replace_char(macro, '/', '_');
str_replace_char(macro, '-', '_');
str_replace_char(macro, '.', '_');
all_caps(macro);

headerfile
<< "/*" << endl
<< " * Copyright 2012 Couchbase, Inc" << endl
<< " *" << endl
<< " * Licensed under the Apache License, Version 2.0 (the \"License\");" << endl
<< " * you may not use this file except in compliance with the License." << endl
<< " * You may obtain a copy of the License at" << endl
<< " *" << endl
<< " * http://www.apache.org/licenses/LICENSE-2.0" << endl
<< " *" << endl
<< " * Unless required by applicable law or agreed to in writing, software" << endl
<< " * distributed under the License is distributed on an \"AS IS\" BASIS," << endl
<< " * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied." << endl
<< " * See the License for the specific language governing permissions and" << endl
<< " * limitations under the License." << endl
<< " */" << endl
<< endl
<< "/////////////////////////////////" << endl
<< "// Generated file, do not edit //" << endl
<< "/////////////////////////////////" << endl
<< "#ifndef " << macro << "_" << endl
<< "#define " << macro << "_" << endl
<< endl
<< "#include \"config.h\"" << endl
<< endl
<< "#ifdef __cplusplus" << endl
<< "extern \"C\" {" << endl
<< "#endif" << endl
<< endl
<< "const char *" << function << "(void);" << endl
<< endl
<< "#ifdef __cplusplus" << endl
<< "}" << endl
<< "#endif" << endl
<< "#endif // " << macro << "_" << endl;
headerfile.close();

ofstream sourcefile(cfile);
sourcefile
<< "/*" << endl
<< " * Copyright 2012 Couchbase, Inc" << endl
<< " *" << endl
<< " * Licensed under the Apache License, Version 2.0 (the \"License\");" << endl
<< " * you may not use this file except in compliance with the License." << endl
<< " * You may obtain a copy of the License at" << endl
<< " *" << endl
<< " * http://www.apache.org/licenses/LICENSE-2.0" << endl
<< " *" << endl
<< " * Unless required by applicable law or agreed to in writing, software" << endl
<< " * distributed under the License is distributed on an \"AS IS\" BASIS," << endl
<< " * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied." << endl
<< " * See the License for the specific language governing permissions and" << endl
<< " * limitations under the License." << endl
<< " */" << endl
<< endl
<< "/////////////////////////////////" << endl
<< "// Generated file, do not edit //" << endl
<< "/////////////////////////////////" << endl
<< "#include \"config.h\"" << endl
<< "#include \"" << hfile << "\"" << endl
<< endl
<< "const char *" << function << "(void)" << endl
<< "{" << endl
<< " return " << c << ";" << endl
<< "}" << endl;

cJSON_Delete(c);

return 0;
}

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