📄 porting.mldoc
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<!-- porting.mldoc --><!DOCTYPE ML-DOC SYSTEM><COPYRIGHT OWNER="Bell Labs, Lucent Technologies" YEAR=1998><COPYRIGHT OWNER="AT&T Bell Laboratories" YEAR=1995><VERSION VERID="1.0" YEAR=1995 MONTH=11 DAY=16><TITLE>Porting old programs</TITLE><SECTION><HEAD>Porting old CML programs</HEAD><PP>There have been substantial changes from version 0.9.8 of &CML;.Most of these changes are cosmetic name changes meant to trackchanges in the &SML; interfaces, and to rationalize naming conventions.In this section, we detail the changes to the &CML; interfaces, anddescribe correspondence between the old and new interfaces.<SECTION><HEAD>Backwards compatibility modules</HEAD><PP>To ease the transition from version 0.9.8 of &CML; to the newinterfaces, we provide two backwards compatibility modules in the&CML; Library.</SECTION><SECTION><HEAD>Name changes</HEAD><PP><TABLE> <COL ALIGN=LEFT> <COL ALIGN=LEFT> <TR><TH ALIGN=CENTER>Old name <TH ALIGN=CENTER>New name <TR><TD><IDREF/accept/ <TD><VALREF STRID="CML"/recv/ <TR><TD><IDREF/receive/ <TD><VALREF STRID="CML"/recvEvt/ <TR><TD><IDREF/transmit/ <TD><VALREF STRID="CML"/sendEvt/ <TR><TD><IDREF/timout/ <TD><VALREF STRID="CML"/timeOutEvt/ <TR><TD><IDREF/waitUntil/ <TD><VALREF STRID="CML"/atTimeEvt/ <TR><TD><IDREF/threadWait/ <TD><VALREF STRID="CML"/joinEvt/ <TR><TD><IDREF/sameThread/ <TD><VALREF STRID="CML"/sameTid/</TABLE></SECTION><SECTION><HEAD>Input/output</HEAD><PP>The most significant changes to the &CML; interfaces have to do withinput/output operations.In version 0.9.8, the structure <IDREF/CIO/ provided an implementationof the &SMLNJ; <IDREF/IO/ signature extended with event-valued operations.The old &SML; I/O interface has been replaced with a new interface, which isdescribed in the <DOCREF DOCUMENT=SML-BASIS-DOC/&SML; Basis Library Manual/,and &CML; has followed suite.</SECTION><SECTION><HEAD>Condition variables</HEAD></SECTION><SECTION><HEAD>Polling</HEAD><PP>The only loss in function from version 0.9.8 is the eliminationof the <IDREF/poll/ operation, which provided a non-blocking formof <VALREF STRID="CML"/sync/.Instead of this operation, &CML; now provides non-blocking input operationson many of the basic communication types.</SECTION></SECTION>⌨️ 快捷键说明
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