EPICS_driver_modules/StreamDevice
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allow to use absolute file paths

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This commit is contained in:
zimoch
2021-07-05 17:22:54 +02:00
parent a06006eade
commit fe1ac364ab
2 changed files with 54 additions and 42 deletions
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3
src/StreamEpics.cc
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@ -461,8 +461,7 @@ drvInit()
#endif #endif
if (!path) if (!path)
fprintf(stderr, fprintf(stderr,
"drvStreamInit: Warning! STREAM_PROTOCOL_PATH not set. " "drvStreamInit: Warning! STREAM_PROTOCOL_PATH not set.\n");
"Defaults to \"%s\"\n", StreamProtocolParser::path);
else else
StreamProtocolParser::path = path; StreamProtocolParser::path = path;
debug("StreamProtocolParser::path = %s\n", debug("StreamProtocolParser::path = %s\n",

41
src/StreamProtocol.cc
View File

@ -53,7 +53,7 @@ class StreamProtocolParser::Protocol::Variable
// StreamProtocolParser // StreamProtocolParser
StreamProtocolParser* StreamProtocolParser::parsers = NULL; StreamProtocolParser* StreamProtocolParser::parsers = NULL;
const char* StreamProtocolParser::path = "."; const char* StreamProtocolParser::path = NULL;
static const char* specialChars = " ,;{}=()$'\"+-*/"; static const char* specialChars = " ,;{}=()$'\"+-*/";
// Client destructor // Client destructor
@ -157,12 +157,27 @@ this after protocol arguments have been replaced.
StreamProtocolParser* StreamProtocolParser:: StreamProtocolParser* StreamProtocolParser::
readFile(const char* filename) readFile(const char* filename)
{ {
FILE* file; FILE* file = NULL;
StreamProtocolParser* parser; StreamProtocolParser* parser;
const char *p; const char *p;
size_t n; size_t n;
StreamBuffer dir; StreamBuffer dir;
// no path or absolute file name
if (!path || filename[0] == '/'
#ifdef _WIN32
|| filename[0] == '\\' || (isalpha(filename[0]) && filename[1] == ':')
#endif
) {
// absolute file name
file = fopen(filename, "r");
if (file) {
debug("StreamProtocolParser::readFile: found '%s'\n", filename);
} else {
error("Can't find readable file '%s'\n", filename);
return NULL;
}
} else {
// look for filename in every dir in search path // look for filename in every dir in search path
for (p = path; *p; p += n) for (p = path; *p; p += n)
{ {
@ -191,23 +206,21 @@ readFile(const char* filename)
// try to read the file // try to read the file
debug("StreamProtocolParser::readFile: try '%s'\n", dir()); debug("StreamProtocolParser::readFile: try '%s'\n", dir());
file = fopen(dir(), "r"); file = fopen(dir(), "r");
if (file) if (file) {
{
// file found; create a parser to read it
debug("StreamProtocolParser::readFile: found '%s'\n", dir()); debug("StreamProtocolParser::readFile: found '%s'\n", dir());
break;
}
}
if (!file) {
error("Can't find readable file '%s' in '%s'\n", filename, path);
return NULL;
}
}
// file found; create a parser to read it
parser = new StreamProtocolParser(file, filename); parser = new StreamProtocolParser(file, filename);
fclose(file); fclose(file);
if (!parser->valid) return NULL; if (!parser->valid) return NULL;
// printf(
// "/---------------------------------------------------------------------\\\n");
// parser->report();
// printf(
// "\\---------------------------------------------------------------------/\n");
return parser; return parser;
}
}
error("Can't find readable file '%s' in '%s'\n", filename, path);
return NULL;
} }
/* /*