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Full Discussion: Awk Performance Issues
Top Forums UNIX for Dummies Questions & Answers Awk Performance Issues Post 302350608 by vgersh99 on Friday 4th of September 2009 10:24:01 AM
Old 09-04-2009
instead of spawning a next shell with "test -r", use this function and check for the return value:
Code:
# Function to test for the existance of a file
#
function fileExists(file,   dummy,ret)
{
  ret=0;
  if ((getline dummy < file) > 0) {
  # file exists and can be read
      ret = 1;
      close(file);
  }
   return ret;
}

 

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PAPI_state(3)							       PAPI							     PAPI_state(3)

NAME
PAPI_state - Return the counting state of an EventSet. SYNOPSIS
Detailed Description C Interface: #include <papi.h> int PAPI_state( int EventSet, int * status ); Parameters: EventSet -- an integer handle for a PAPI event set as created by PAPI_create_eventset status -- an integer containing a boolean combination of one or more of the following nonzero constants as defined in the PAPI header file papi.h: o PAPI_STOPPED -- EventSet is stopped o PAPI_RUNNING -- EventSet is running o PAPI_PAUSED -- EventSet temporarily disabled by the library o PAPI_NOT_INIT -- EventSet defined, but not initialized o PAPI_OVERFLOWING -- EventSet has overflowing enabled o PAPI_PROFILING -- EventSet has profiling enabled o PAPI_MULTIPLEXING -- EventSet has multiplexing enabled o PAPI_ACCUMULATING -- reserved for future use o PAPI_HWPROFILING -- reserved for future use Return values: PAPI_OK PAPI_EINVAL One or more of the arguments is invalid. PAPI_ENOEVST The EventSet specified does not exist. PAPI_state() returns the counting state of the specified event set. Example: * int EventSet = PAPI_NULL; * int status = 0; * int ret; * * ret = PAPI_create_eventset(&EventSet); * if (ret != PAPI_OK) handle_error(ret); * * // Add Total Instructions Executed to our EventSet * ret = PAPI_add_event(EventSet, PAPI_TOT_INS); * if (ret != PAPI_OK) handle_error(ret); * * // Start counting * ret = PAPI_state(EventSet, &status); * if (ret != PAPI_OK) handle_error(ret); * printf("State is now %d0,status); * ret = PAPI_start(EventSet); * if (ret != PAPI_OK) handle_error(ret); * ret = PAPI_state(EventSet, &status); * if (ret != PAPI_OK) handle_error(ret); * printf("State is now %d0,status); * See Also: PAPI_stop PAPI_start Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_state(3)
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