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eget/pvget/pvput: -f option implemented

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This commit is contained in:
Matej Sekoranja
2014-01-15 10:59:18 +01:00
parent 6aeaadd240
commit 8a2d0b4171
3 changed files with 158 additions and 37 deletions
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68
testApp/remote/eget.cpp
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@@ -17,7 +17,9 @@
#include <vector>
#include <string>
#include <istream>
#include <ostream>
#include <fstream>
#include <sstream>
#include <iomanip>
#include <map>
@@ -1021,6 +1023,7 @@ void usage (void)
" -q: Quiet mode, print only error messages\n"
" -d: Enable debug output\n"
" -F <ofs>: Use <ofs> as an alternate output field separator\n"
" -f <input file>: Use <input file> as an input that provides a list PV name(s) to be read, use '-' for stdin\n"
" -c: Wait for clean shutdown and report used instance count (for expert users)"
"\n\nexamples:\n\n"
"#! Get the value of the PV corr:li32:53:bdes\n"
@@ -1033,7 +1036,7 @@ void usage (void)
"> eget -s archiveService -a entity=quad45:bdes;history -a starttime=2012-02-12T10:04:56 -a endtime=2012-02-01T10:04:56\n"
"\n"
"#! Get polynomials for bunch of quads using a stdin to give a list of PV names\n"
"> eget -s names -a pattern=QUAD:LTU1:8%%:POLYCOEF | eget -\n"
"> eget -s names -a pattern=QUAD:LTU1:8%%:POLYCOEF | eget -f -\n"
"\n"
, DEFAULT_REQUEST, DEFAULT_TIMEOUT, DEFAULT_PROVIDER);
}
@@ -1446,7 +1449,11 @@ int main (int argc, char *argv[])
bool serviceRequest = false;
bool pvRequestProvidedByUser = false;
bool onlyQuery = false;
bool read_stdin = false;
istream* inputStream = 0;
ifstream ifs;
bool fromStream = false;
string service;
//string urlEncodedRequest;
vector< pair<string,string> > parameters;
@@ -1456,7 +1463,7 @@ int main (int argc, char *argv[])
setvbuf(stdout,NULL,_IOLBF,BUFSIZ); /* Set stdout to line buffering */
while ((opt = getopt(argc, argv, ":hr:s:a:w:zntTmxp:qdcF:-")) != -1) {
while ((opt = getopt(argc, argv, ":hr:s:a:w:zntTmxp:qdcF:f:")) != -1) {
switch (opt) {
case 'h': /* Print usage */
usage();
@@ -1545,9 +1552,28 @@ int main (int argc, char *argv[])
case 'F': /* Store this for output formatting */
fieldSeparator = (char) *optarg;
break;
case '-': /* Store this for output formatting */
read_stdin = true;
case 'f': /* Use input stream as input */
{
string fileName = optarg;
if (fileName == "-")
inputStream = &cin;
else
{
ifs.open(fileName.c_str(), ifstream::in);
if (!ifs)
{
fprintf(stderr,
"Failed to open file '%s'.\n",
fileName.c_str());
return 1;
}
else
inputStream = &ifs;
}
fromStream = true;
break;
}
case '?':
fprintf(stderr,
"Unrecognized option: '-%c'. ('eget -h' for help.)\n",
@@ -1567,22 +1593,13 @@ int main (int argc, char *argv[])
int nPvs = argc - optind; /* Remaining arg list are PV names */
if (nPvs > 0)
{
// do not allow (not supported) reading stdin and command line specified pvs
read_stdin = false;
// do not allow reading file and command line specified pvs
fromStream = false;
}
else if (nPvs < 1 && !serviceRequest && !read_stdin)
else if (nPvs < 1 && !serviceRequest && !fromStream)
{
// 0 is fd for stdin
// if there is a pipe, automatically set read_stdin
if (!isatty(0))
{
read_stdin = true;
}
else
{
fprintf(stderr, "No PV name(s) specified. ('eget -h' for help.)\n");
return 1;
}
fprintf(stderr, "No PV name(s) specified. ('eget -h' for help.)\n");
return 1;
}
// only one pv, arguments provided without serviceRequest switch
@@ -1716,7 +1733,8 @@ int main (int argc, char *argv[])
}
// TODO maybe unify for nPvs == 1?!
bool collectValues = (mode == ValueOnlyMode) && nPvs > 1 && !read_stdin;
// we cannot collect when fromStream is true, since we want to print value immediately
bool collectValues = (mode == ValueOnlyMode) && nPvs > 1 && !fromStream;
vector<PVStructure::shared_pointer> collectedValues;
shared_vector<String> collectedNames;
@@ -1732,7 +1750,7 @@ int main (int argc, char *argv[])
{
Channel::shared_pointer channel;
if (!read_stdin)
if (!fromStream)
{
if (++n >= nPvs)
break;
@@ -1742,8 +1760,10 @@ int main (int argc, char *argv[])
{
string cn;
string cp;
std::cin >> cn;
if (!std::cin)
// read next channel name from stream
*inputStream >> cn;
if (!(*inputStream))
break;
URI uri;
@@ -1845,7 +1865,7 @@ int main (int argc, char *argv[])
else
{
// print immediately
printValue(channel->getChannelName(), getRequesterImpl->getPVStructure());
printValue(channel->getChannelName(), getRequesterImpl->getPVStructure(), fromStream);
}
}
}