Discussion of these changes can be found on the Mercury developers
mailing list archives from June 2018.
COPYING.LIB:
Add a special linking exception to the LGPL.
*:
Update references to COPYING.LIB.
Clean up some minor errors that have accumulated in copyright
messages.
Branches: main
Make the Java backend not use native code to implement any standard library
procedures. The only such procedures were related to benchmarking and timing,
which aren't very important so I just make a best effort using methods that
the Java standard library provides.
library/benchmarking.m:
Implement `benchmarking.report_stats' for Java as closely as possible
without native code. Add real time output.
Add `benchmarking.ML_initialise' to remember the time when the
program starts up.
compiler/mlds_to_java.m:
Make the main wrapper call `benchmarking.ML_initialise' at startup.
library/time.m:
Implement `time.clock', `time.times', `time.clocks_per_sec',
`time.clk_tck' as closely as possible without native code.
library/Mmakefile:
Comment out commands to build and install Native.so.
java/runtime/Native.c:
Even though this is not used any more, update the function names for
the "jmercury" package prefix.
README.Java:
Update section on unimplemented procedures.
Estimated hours taken: 1
Branches: main
Let benchmark.report_stats/0 report real times on POSIX platforms.
configure.in:
Check for time.h and gettimeofday().
runtime/mercury_conf.h.in:
Add MR_HAVE_TIME_H, MR_HAVE_GETTIMEOFDAY.
Unrelated change: add MR_HAVE_PTHREAD_H.
runtime/mercury_timing.c:
runtime/mercury_timing.h:
Add `MR_get_real_milliseconds'.
runtime/mercury_wrapper.c:
runtime/mercury_wrapper.h:
Rename MR_time_* globals to MR_user_time_*.
Add and initialise MR_real_time_* globals.
library/benchmarking.m:
Output real times in ML_report_stats().
Correct spelling of milliseconds.
java/runtime/Native.c:
java/runtime/Native.java.in:
trace/mercury_trace_declarative.c:
Correct spelling of milliseconds.
Estimated hours taken: 2
Branches: main
Implement some library procedures for the Java back-end.
library/time.m:
Implement c_clk_tck/0 for Java. Also changed the C implementation to
use the same macro as that used in Native.c.
java/runtime/Native.java.in:
Add new function clk_tck() to be called by c_clk_tck/0.
java/runtime/Native.c:
Add corresponding implementation for clk_tck().
Estimated hours taken: 13
Branches: main
Implement some library predicates for Java using JNI.
java/runtime/Native.java.in:
A new class which uses JNI to provide any native functionality
required by predicates of the standard library in Java.
So far it only provides methods relating to timing.
java/runtime/Native.c:
Source code, written in C, which implements all the native methods of
mercury.runtime.Native. Note that this implementation makes use of the
existing C implementation of the equivalent functions.
java/runtime/Mmakefile:
Rules for compiling a shared object from Native.c.
library/time.m:
Implement the following predicates for Java using Native interface:
time__c_clock/3
time__clocks_per_sec/1
time__times/7
library/benchmarking.m:
Implement the following predicates for Java using Native interface:
get_user_cpu_miliseconds/1
library/Mmakefile:
Renamed to library/Mmakefile.in, so as to have access to FULLARCH
constant.
library/Mmakefile.in:
Added rules for incorporating the Native shared object.
