1 #! /usr/bin/env python 2 ### 3 # 4 # build_glob.py : Build the global_functions.h and global_functions.c 5 # files which are required to implement the user 6 # interface to global variables now that thread specific 7 # data (TSD) is used to emulate global state. 8 # 9 # See Copyright for the status of this software. 10 # Gary.Pennington (at] sun.com 11 ### 12 import os, string 13 14 class globvar: 15 def __init__(self, type, name): 16 self.type=type 17 self.name=name 18 19 def striplinesep(line): 20 while line and line[-1] in ('\r','\n'): 21 line = line[:-1] 22 return line 23 24 def writeline(file, line=None): 25 if line: 26 file.write(line) 27 file.write("\n") 28 29 if __name__ == "__main__": 30 globals={} 31 global_data=open("global.data").readlines() 32 global_code=open("globals.c").readlines() 33 global_hdr=open("include/libxml/globals.h").readlines() 34 global_functions_hdr=open("include/libxml/globals.h", "w+") 35 global_functions_impl=open("globals.c", "w+") 36 37 # 38 # Rebuild the beginning of the file up to the 39 # Automatically generated string 40 # 41 for line in global_hdr: 42 line = striplinesep(line) 43 if line == " * Automatically generated by build_glob.py.": 44 break 45 writeline(global_functions_hdr, line) 46 47 writeline(global_functions_hdr, " * Automatically generated by build_glob.py.") 48 writeline(global_functions_hdr, " * Do not modify the previous line.") 49 writeline(global_functions_hdr, " */") 50 writeline(global_functions_hdr) 51 52 for line in global_code: 53 line = striplinesep(line) 54 if line == " * Automatically generated by build_glob.py.": 55 break 56 writeline(global_functions_impl, line) 57 58 writeline(global_functions_impl, " * Automatically generated by build_glob.py.") 59 writeline(global_functions_impl, " * Do not modify the previous line.") 60 writeline(global_functions_impl, " */") 61 writeline(global_functions_impl) 62 63 # Now process the data and write it to the appropriate output file 64 for line in global_data: 65 if line[0]=='#': 66 continue 67 line = striplinesep(line) 68 fields = string.split(line, ",") 69 # Update the header file 70 writeline(global_functions_hdr) 71 global_functions_hdr.write("extern "+fields[0]+" *") 72 if fields[2]: 73 global_functions_hdr.write("(*") 74 global_functions_hdr.write("__"+fields[1]+"(void)") 75 if fields[2]: 76 global_functions_hdr.write(")"+fields[2]) 77 writeline(global_functions_hdr,";") 78 writeline(global_functions_hdr, "#ifdef LIBXML_THREAD_ENABLED") 79 writeline(global_functions_hdr,"#define "+fields[1]+" \\") 80 writeline(global_functions_hdr,"(*(__"+fields[1]+"()))") 81 writeline(global_functions_hdr,"#else") 82 if fields[2]: 83 writeline(global_functions_hdr,"LIBXML_DLL_IMPORT extern "+fields[0]+" "+fields[1]+fields[2]+";") 84 else: 85 writeline(global_functions_hdr,"LIBXML_DLL_IMPORT extern "+fields[0]+" "+fields[1]+";") 86 writeline(global_functions_hdr,"#endif") 87 # set/get for per-thread global defaults 88 if fields[3]: 89 writeline(global_functions_hdr,fields[0]+" "+fields[1][:3]+"ThrDef"+fields[1][3:]+"("+fields[0]+" v);") 90 # Update the implementation file 91 writeline(global_functions_impl) 92 # writeline(global_functions_impl, "extern "+fields[0]+" "+fields[1]+";") 93 writeline(global_functions_impl, "#undef\t"+fields[1]) 94 writeline(global_functions_impl, fields[0]+" *") 95 if fields[2]: 96 global_functions_impl.write("(*") 97 global_functions_impl.write("__"+fields[1]+"(void)") 98 if fields[2]: 99 writeline(global_functions_impl, ")[]") 100 writeline(global_functions_impl, " {") 101 writeline(global_functions_impl, " if (IS_MAIN_THREAD)") 102 writeline(global_functions_impl, "\treturn (&"+fields[1]+");") 103 writeline(global_functions_impl, " else") 104 writeline(global_functions_impl, "\treturn (&xmlGetGlobalState()->"+fields[1]+");") 105 writeline(global_functions_impl, "}") 106 # set/get for per-thread global defaults 107 if fields[3]: 108 writeline(global_functions_impl,fields[0]+" "+fields[1][:3]+"ThrDef"+fields[1][3:]+"("+fields[0]+" v) {") 109 writeline(global_functions_impl," "+fields[0]+" ret;"); 110 writeline(global_functions_impl," xmlMutexLock(xmlThrDefMutex);") 111 writeline(global_functions_impl," ret = "+fields[1][:3]+fields[1][3:]+"ThrDef;") 112 writeline(global_functions_impl," "+fields[1][:3]+fields[1][3:]+"ThrDef = v;") 113 writeline(global_functions_impl," xmlMutexUnlock(xmlThrDefMutex);") 114 writeline(global_functions_impl," return ret;") 115 writeline(global_functions_impl,"}") 116 # Terminate the header file with appropriate boilerplate 117 writeline(global_functions_hdr) 118 writeline(global_functions_hdr, "#ifdef __cplusplus") 119 writeline(global_functions_hdr, "}") 120 writeline(global_functions_hdr, "#endif") 121 writeline(global_functions_hdr) 122 writeline(global_functions_hdr, "#endif /* __XML_GLOBALS_H */") 123
