You are looking at the EPICS State Notation Language compiler and runtime sequencer. For more information see the .txt files under documentation: Introduction.txt What all this is about, release notes, and other trivia Installation.txt How to download, build, etc Tutorial.txt Gentle introduction to SNL, some (sloppy) semantics Compiling.txt All about snc, the SNL compiler Using.txt How to create a working SNL program Reference.txt SNL syntax and built-in procedures PV-API.txt Details about the PV API Examples.txt Annotated example programs
"src/seq/seq_cmd.c" did not exist on "91847eaa73630149439e9e56bcef3d79b0037edd"
ben.franksen
authored
This avoids a race condition when creating the global progList (in seq_prog.c) and also avoids code duplication. The global variables in seq_prog.c have been removed. Instead we extend the sequencer program list in seqCommands.c so that for each program it also stores a list of program instances, each one protected by a mutex. Access to this list is restricted to a single generic traversal procedure which automatically applies the lock around each call to the supplied traversee. Since the program list in seqCommands.c is created before multithreading starts there is no race condition. Also added an int return value to the traversees, to indicate whether traversal is supposed to stop (TRUE) or continue (FALSE).
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