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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/mdsio/mdsio_findunit.F,v 1.1 2001/03/06 15:28:53 adcroft Exp $ |
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C $Name: $ |
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#include "CPP_EEOPTIONS.h" |
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subroutine MDSFINDUNIT( iounit, mythid ) |
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C OUT: |
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C iounit integer - unit number |
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C |
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C MDSFINDUNIT returns a valid, unused unit number for f77 I/O |
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C The routine stops the program is an error occurs in the process |
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C of searching the I/O channels. |
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C |
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C Created: 03/20/99 adcroft@mit.edu |
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implicit none |
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#include "EEPARAMS.h" |
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C Arguments |
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integer iounit |
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integer mythid |
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C Local |
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integer ii |
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logical op |
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integer ios |
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character*(max_len_mbuf) msgbuf |
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C ------------------------------------------------------------------ |
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C Sweep through a valid range of unit numbers |
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iounit=-1 |
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do ii=9,99 |
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if (iounit.eq.-1) then |
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inquire(unit=ii,iostat=ios,opened=op) |
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if (ios.ne.0) then |
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write(msgbuf,'(a,i2.2)') |
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& ' MDSFINDUNIT: inquiring unit number = ',ii |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a)') |
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& ' MDSFINDUNIT: inquire statement failed!' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSFINDUNIT' |
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endif |
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if (.NOT. op) then |
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iounit=ii |
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endif |
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endif |
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enddo |
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C Was there an available unit number |
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if (iounit.eq.-1) then |
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write(msgbuf,'(a)') |
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& ' MDSFINDUNIT: could not find an available unit number!' |
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call print_error( msgbuf, mythid ) |
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stop 'ABNORMAL END: S/R MDSFINDUNIT' |
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endif |
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C ------------------------------------------------------------------ |
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return |
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end |
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