Windows: manage timeouts, time and size limits
This commit is contained in:
Jean-Francois Dockes
parent
4efb618250
commit
d373565e0c
4 changed files with 95 additions and 14 deletions
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@ -58,12 +58,34 @@ class RclExecM:
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import msvcrt
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msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
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msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
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self.debugfile = None
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if self.debugfile:
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self.errfout = open(self.debugfile, "ab")
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else:
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self.errfout = sys.stderr
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def rclog(self, s, doexit = 0, exitvalue = 1):
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print("RCLMFILT: %s: %s" % (self.myname, s), file=sys.stderr)
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print("RCLMFILT: %s: %s" % (self.myname, s), file=self.errfout)
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if doexit:
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sys.exit(exitvalue)
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def breakwrite(self, outfile, data):
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if sys.platform != "win32":
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outfile.write(data)
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else:
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total = len(data)
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bs = 4*1024
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offset = 0
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while total > 0:
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if total < bs:
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tow = total
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else:
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tow = bs
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#self.rclog("Total %d Writing %d to stdout: %s" % (total,tow,data[offset:offset+tow]))
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outfile.write(data[offset:offset+tow])
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offset += tow
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total -= tow
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# Note: tried replacing this with a multiple replacer according to
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# http://stackoverflow.com/a/15221068, which was **10 times** slower
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def htmlescape(self, txt):
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@ -119,7 +141,7 @@ class RclExecM:
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docdata = docdata.encode("UTF-8")
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print("Document: %d" % len(docdata))
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sys.stdout.write(docdata)
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self.breakwrite(sys.stdout, docdata)
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if len(ipath):
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print("Ipath: %d" % len(ipath))
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@ -332,7 +354,7 @@ def main(proto, extract):
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else:
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bdata = data
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if debugDumpData or actAsSingle:
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sys.stdout.write(bdata)
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proto.breakwrite(sys.stdout, bdata)
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print()
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sys.exit(0)
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else:
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@ -351,7 +373,7 @@ def main(proto, extract):
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else:
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bdata = data
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if debugDumpData:
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sys.stdout.write(bdata)
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proto.breakwrite(sys.stdout, bdata)
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print()
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if eof != RclExecM.noteof:
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sys.exit(0)
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@ -13,6 +13,7 @@ DEFINES += LIBRECOLL_LIBRARY BUILDING_RECOLL
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DEFINES -= UNICODE
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DEFINES -= _UNICODE
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DEFINES += _MBCS
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DEFINES += PSAPI_VERSION=1
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SOURCES += \
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../aspell/rclaspell.cpp \
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@ -119,7 +120,7 @@ windows{
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# Visual Studio
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}
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LIBS += c:/recolldeps/xapian/xapian-core-1.2.21/.libs/libxapian-22.dll \
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c:/recolldeps/zlib-1.2.8/zlib1.dll -liconv -lshlwapi -lkernel32
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c:/recolldeps/zlib-1.2.8/zlib1.dll -liconv -lshlwapi -lpsapi -lkernel32
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}
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unix {
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@ -11,6 +11,7 @@
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#include "safesysstat.h"
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#include "safeunistd.h"
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#include "safewindows.h"
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#include <psapi.h>
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#include "smallut.h"
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#include "pathut.h"
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@ -89,7 +90,7 @@ static string argvToCmdLine(const string& cmd, const vector<string>& args)
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}
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// Merge the father environment with the variable specified in m_env
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char *mergeEnvironment(const STD_UNORDERED_MAP<string, string>& addenv)
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static char *mergeEnvironment(const STD_UNORDERED_MAP<string, string>& addenv)
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{
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// Parse existing environment.
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char *envir = GetEnvironmentStrings();
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@ -235,13 +236,27 @@ static WaitResult Wait(HANDLE hdl, int timeout)
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return Timeout;
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}
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static int getVMMBytes(HANDLE hProcess)
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{
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PROCESS_MEMORY_COUNTERS pmc;
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const int MB = 1024 * 1024;
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if (GetProcessMemoryInfo(hProcess, &pmc, sizeof(pmc))) {
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LOGDEB2(("ExecCmd: getVMMBytes paged Kbs %d non paged %d Kbs\n",
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int(pmc.QuotaPagedPoolUsage/1024),
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int(pmc.QuotaNonPagedPoolUsage/1024)));
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return int(pmc.QuotaPagedPoolUsage /MB +
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pmc.QuotaNonPagedPoolUsage / MB);
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}
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return -1;
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}
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////////////////////////////////////////////////////////
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// ExecCmd:
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class ExecCmd::Internal {
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public:
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Internal()
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: m_advise(0), m_provide(0), m_timeoutMs(1000) {
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: m_advise(0), m_provide(0), m_timeoutMs(1000), m_rlimit_as_mbytes(0) {
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reset();
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}
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@ -249,6 +264,7 @@ public:
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ExecCmdAdvise *m_advise;
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ExecCmdProvide *m_provide;
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int m_timeoutMs;
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int m_rlimit_as_mbytes;
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// We need buffered I/O for getline. The Unix version uses netcon's
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string m_buf; // Buffer. Only used when doing getline()s
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@ -278,6 +294,7 @@ public:
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bool preparePipes(bool has_input, HANDLE *hChildInput,
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bool has_output, HANDLE *hChildOutput,
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HANDLE *hChildError);
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bool tooBig();
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};
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// ExecCmd resource releaser class. Using a separate object makes it
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@ -455,7 +472,21 @@ void ExecCmd::putenv(const string &name, const string& value)
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void ExecCmd::setrlimit_as(int mbytes)
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{
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// Later maybe
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m->m_rlimit_as_mbytes = mbytes;
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}
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bool ExecCmd::Internal::tooBig()
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{
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if (m_rlimit_as_mbytes <= 0)
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return false;
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int mbytes = getVMMBytes(m_piProcInfo.hProcess);
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if (mbytes > m_rlimit_as_mbytes) {
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LOGINFO(("ExecCmd:: process mbytes %d > set limit %d\n",
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mbytes, m_rlimit_as_mbytes));
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m_killRequest = true;
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return true;
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}
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return false;
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}
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bool ExecCmd::Internal::preparePipes(bool has_input,HANDLE *hChildInput,
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@ -781,11 +812,11 @@ int ExecCmd::receive(string& data, int cnt)
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}
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}
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while (true) {
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const int BUFSIZE = 8192;
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const int BUFSIZE = 4096;
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CHAR chBuf[BUFSIZE];
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int toread = cnt > 0 ? MIN(cnt - totread, BUFSIZE) : BUFSIZE;
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BOOL bSuccess = ReadFile(m->m_hOutputRead, chBuf, toread,
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NULL, &m->m_oOutputRead);
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NULL, &m->m_oOutputRead);
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DWORD err = GetLastError();
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LOGDEB1(("receive: ReadFile: success %d err %d\n",
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int(bSuccess), int(err)));
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@ -795,7 +826,8 @@ int ExecCmd::receive(string& data, int cnt)
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break;
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}
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WaitResult waitRes = Wait(m->m_oOutputRead.hEvent, 1000);
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waitagain:
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WaitResult waitRes = Wait(m->m_oOutputRead.hEvent, m->m_timeoutMs);
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if (waitRes == Ok) {
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DWORD dwRead;
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if (!GetOverlappedResult(m->m_hOutputRead, &m->m_oOutputRead,
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@ -820,6 +852,13 @@ int ExecCmd::receive(string& data, int cnt)
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}
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break;
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} else if (waitRes == Timeout) {
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LOGDEB0(("ExecCmd::receive: timeout (%d mS)\n", m->m_timeoutMs));
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if (m->tooBig()) {
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if (!CancelIo(m->m_hOutputRead)) {
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printError("CancelIo");
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}
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return -1;
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}
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// We only want to cancel if m_advise says so here.
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if (m->m_advise) {
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try {
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@ -838,6 +877,7 @@ int ExecCmd::receive(string& data, int cnt)
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}
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break;
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}
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goto waitagain;
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}
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if ((cnt == 0 && totread > 0) || (cnt > 0 && totread == cnt))
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break;
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@ -901,7 +941,19 @@ int ExecCmd::wait()
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DWORD exit_code = -1;
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if (!m->m_killRequest && m->m_piProcInfo.hProcess) {
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// Wait until child process exits.
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WaitForSingleObject(m->m_piProcInfo.hProcess, INFINITE);
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while (WaitForSingleObject(m->m_piProcInfo.hProcess, m->m_timeoutMs)
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== WAIT_TIMEOUT) {
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LOGDEB(("ExecCmd::wait: timeout (ok)\n"));
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if (m->m_advise) {
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m->m_advise->newData(0);
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}
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if (m->tooBig()) {
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// Let cleaner work to kill the child
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m->m_killRequest = true;
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return -1;
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}
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}
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exit_code = 0;
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GetExitCodeProcess(m->m_piProcInfo.hProcess, &exit_code);
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// Clean up, here to avoid cleaner trying to kill the now
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@ -17,6 +17,9 @@ ANTIWORD=c:/recolldeps/antiword
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CONFIGURATION=Debug
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PLATFORM=x64
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GUIBIN=c:/recoll/src/build-librecoll-Desktop_Qt_5_5_0_MinGW_32bit-Debug/debug/librecoll.dll
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GUILIB=c:/Users/Bill/recoll/src/build-recoll-Desktop_Qt_5_5_0_MinGW_32bit-Debug/debug/recoll.exe
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################
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# Script:
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@ -58,6 +61,9 @@ copyrecoll()
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cp $RECOLL/qtgui/mtpics/* $DESTDIR/Share/images
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cp $RECOLL/qtgui/i18n/*.qm $DESTDIR/Share/translations
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cp $GUIBIN $DESTDIR || fatal copy recoll.exe
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cp $GUILIB $DESTDIR || fatal copy Gui librecoll
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}
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copyantiword()
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