18 Commits
8.0.6 ... 8.0.7

Author SHA1 Message Date
Andrew Johnson
e069c699e9 Final commit for 8.0.7 2025-12-15 11:44:53 -06:00
Andrew Johnson
8963b2dba1 Add release notes for changes since 8.0.6
- Jeremy Lorelli
- Andrew Johnson
- Dirk Zimoch
- Chris Johns
- Michael Davidsaver
2025-12-15 11:37:47 -06:00
Michael Davidsaver
9ec9a526f5 revise Timer phase reset 2025-12-05 17:01:00 -08:00
Chris Johns
b4114589ff Skip any missed timer events updating the timer to now
This stops a timer calling the callback for every missed event if the
time jumps forward when corrected or moved.
2025-12-05 17:01:00 -08:00
6689c9ce1f Allow testing deprecated functions without causing compiler warnings 2025-12-03 16:47:55 -08:00
Andrew Johnson
0c1773f25d Clang warnings: sprintf() => epicsSnprintf() 2025-12-01 18:20:27 -08:00
Andrew Johnson
d0ff9a9592 CI: Final GHA config adjustments
Don't change the MSC C++ standard when building submodules!
2025-12-01 17:39:24 -06:00
JJL772
bf36070860 Allow Timer to be cancelled during callback execution
Useful for when e.g. a periodic timer needs to cancel itself
2025-11-19 08:49:41 -08:00
Andrew Johnson
5552773e5e CI: Rename and adjust jobs (#102)
* Update Appveyor and GHA CI build configurations to more closely match Base CI.

* Other CI script clean-up
2025-11-10 12:29:19 -06:00
Andrew Johnson
b3a1077270 CI: Update Ubuntu 20.04 to 22.04 2025-05-05 12:26:24 -05:00
Ralph Lange
1c5f75bcd6 Merge pull request #97 from ralphlange/fix-ci
ci: consistent AppVeyor job config for pvData/pvAccess
2024-12-25 09:09:33 +01:00
Ralph Lange
2455039594 ci: consistent AppVeyor job config for pvData/pvAccess 2024-12-24 17:19:59 +01:00
Ralph Lange
f47676c225 Merge pull request #96 from ralphlange/fix-ci
Fix CI issues
2024-12-19 14:42:15 +01:00
Ralph Lange
0881e0ed86 ci: update appveyor.yml from base 2024-12-19 08:48:41 +01:00
Ralph Lange
e457b60b30 ci: Update GHA workflow from base
- Run Fedora in containers
- Add Linux cross builds
2024-12-18 21:32:11 +01:00
Ralph Lange
a6746f8161 GHA: Update actions/upload-artifact to v4 2024-12-16 12:08:55 +01:00
Ralph Lange
144f0228cc ci: update ci-scripts to v3.4.1 2023-12-15 09:40:45 +01:00
Andrew Johnson
7300e6b0bd Set next development version 2023-12-13 14:52:07 -06:00
12 changed files with 270 additions and 213 deletions

View File

@@ -1,33 +1,30 @@
# .appveyor.yml for use with EPICS Base ci-scripts
# (see: https://github.com/epics-base/ci-scripts)
# This is YAML - indentation levels are crucial
#---------------------------------#
# build cache #
#---------------------------------#
# The AppVeyor cache allowance is way too small (1GB per account across all
# projects, branches and jobs) to be used for the dependency builds.
cache:
- C:\Users\appveyor\.tools
#---------------------------------#
# additional packages #
#---------------------------------#
install:
# for the sequencer
- cinst re2c
- cmd: git submodule update --init --recursive
#---------------------------------#
# repository cloning #
#---------------------------------#
init:
# Set autocrlf to make batch files work
- git config --global core.autocrlf true
- cmd: git config --global core.autocrlf true
clone_depth: 50
clone_depth: 5
# Skipping commits affecting only specific files
skip_commits:
files:
- 'documentation/*'
- '**/*.md'
#---------------------------------#
# build matrix configuration #
#---------------------------------#
# Build Configurations: dll/static, regular/debug
configuration:
@@ -40,47 +37,65 @@ configuration:
environment:
# common / default variables for all jobs
SETUP_PATH: .ci-local
EPICS_TEST_IMPRECISE_TIMING: YES
BASE: 7.0
matrix:
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
CMP: vs2019
BASE: 7.0
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
CMP: gcc
BASE: 7.0
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
CMP: vs2017
BASE: 7.0
- APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
CMP: vs2019
- CMP: vs2019
BASE: 3.15
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
- CMP: vs2019
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
- CMP: vs2017
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
- CMP: vs2015
- CMP: gcc
APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
# TODO: static linking w/ readline isn't working. Bypass auto-detect
COMMANDLINE_LIBRARY: EPICS
# Platform: processor architecture
platform:
- x64
platform: x64
# Matrix configuration: exclude sets of jobs
matrix:
exclude:
# MinGW debug builds use the same libraries, unlike VS
- configuration: dynamic-debug
CMP: gcc
- configuration: static-debug
CMP: gcc
#---------------------------------#
# building & testing #
#---------------------------------#
build_script:
install:
- cmd: git submodule update --init --recursive
- cmd: pip install git+https://github.com/mdavidsaver/ci-core-dumper#egg=ci-core-dumper
- cmd: python .ci/cue.py prepare
build_script:
- cmd: python .ci/cue.py build
test_script:
- cmd: python .ci/cue.py test
- cmd: python -m ci_core_dumper install
- cmd: python .ci/cue.py -T 20M test
on_finish:
- ps: Get-ChildItem *.tap -Recurse -Force | % { Push-AppveyorArtifact $_.FullName -FileName $_.Name }
- cmd: python .ci/cue.py build test-results -s
- cmd: python .ci/cue.py -T 5M test-results
on_failure:
- cmd: python -m ci_core_dumper report
#---------------------------------#
# debugging #
#---------------------------------#
## if you want to connect by remote desktop to a failed build, uncomment these lines
## note that you will need to connect within the usual build timeout limit (60 minutes)
## so you may want to adjust the build matrix above to just build the one of interest
## To connect by remote desktop to a failed build, uncomment the lines below.
## You must connect within the usual build timeout limit (60 minutes),
## so adjust the build matrix above to just build the config of interest.
#on_failure:
# - ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
@@ -91,4 +106,8 @@ on_finish:
#---------------------------------#
notifications:
- provider: Email
to:
- core-talk@aps.anl.gov
on_build_success: false
- provider: GitHubPullRequest

2
.ci

Submodule .ci updated: 899b18336b...20f8e05393

View File

@@ -11,27 +11,13 @@ name: pvData
on:
push:
paths-ignore:
- 'documentation/*'
- 'startup/*'
- '.appveyor/*'
- '.tools/*'
- '.gitattributes'
- '**/*.html'
- '**/*.md'
- .appveyor.yml
pull_request:
paths-ignore:
- 'documentation/*'
- 'startup/*'
- '.appveyor/*'
- '.tools/*'
- '.gitattributes'
- '**/*.html'
- '**/*.md'
env:
SETUP_PATH: .ci-local:.ci
EPICS_TEST_IMPRECISE_TIMING: YES
EPICS_TEST_TIMEOUT: 300 # 5 min (RTEMS epicsMessageQueue is slowest)
EPICS_TEST_TIMEOUT: 300 # 5 min
jobs:
native:
@@ -39,12 +25,11 @@ jobs:
runs-on: ${{ matrix.os }}
# Set environment variables from matrix parameters
env:
# NB: PVA modules build against both BASE 7.0 and 3.15
BASE: ${{ matrix.base }}
CMP: ${{ matrix.cmp }}
BCFG: ${{ matrix.configuration }}
BASE: ${{ matrix.base }}
WINE: ${{ matrix.wine }}
RTEMS: ${{ matrix.rtems }}
RTEMS_TARGET: ${{ matrix.rtems_target }}
CI_CROSS_TARGETS: ${{ matrix.cross }}
EXTRA: ${{ matrix.extra }}
TEST: ${{ matrix.test }}
strategy:
@@ -52,130 +37,167 @@ jobs:
matrix:
# Job names also name artifacts, character limitations apply
include:
- os: ubuntu-latest
- name: "7.0 Ub gcc c++20 Werror"
base: "7.0"
os: ubuntu-latest
cmp: gcc
configuration: default
base: "7.0"
wine: "64"
name: "Ub-20 gcc-9 + MinGW"
# Turn all warnings into errors,
# except for those we could not fix (yet).
# Remove respective -Wno-error=... flag once it is fixed.
extra: "CMD_CXXFLAGS=-std=c++20
CMD_CPPFLAGS='-fdiagnostics-color
-fstack-protector-strong
-Wformat
-Werror
-Werror=format-security
-Wno-error=deprecated-declarations
-Wno-error=stringop-truncation
-Wno-error=restrict
-Wno-error=sizeof-pointer-memaccess
-Wno-error=nonnull
-Wno-error=dangling-pointer
-Wno-error=format-overflow
-Wno-error=stringop-overread
-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3'
CMD_LDFLAGS=-Wl,-z,relro"
- os: ubuntu-latest
- name: "7.0 Ub gcc C++11, static"
base: "7.0"
os: ubuntu-latest
cmp: gcc
configuration: static
base: "7.0"
wine: "64"
name: "Ub-20 gcc-9 + MinGW, static"
extra: "CMD_CXXFLAGS=-std=c++11"
- os: ubuntu-latest
- name: "7.0 Ub gcc u-char"
base: "7.0"
os: ubuntu-latest
cmp: gcc
configuration: static
base: "7.0"
extra: "CMD_CXXFLAGS=-std=c++11"
name: "Ub-20 gcc-9 C++11, static"
extra: "CMD_CFLAGS=-funsigned-char CMD_CXXFLAGS=-funsigned-char"
- os: ubuntu-latest
- name: "7.0 Ub clang"
base: "7.0"
os: ubuntu-latest
cmp: clang
configuration: default
base: "7.0"
name: "Ub-20 clang-10"
- os: ubuntu-latest
- name: "7.0 Ub clang C++11"
base: "7.0"
os: ubuntu-latest
cmp: clang
configuration: default
base: "7.0"
extra: "CMD_CXXFLAGS=-std=c++11"
name: "Ub-20 clang-10 C++11"
- os: ubuntu-20.04
cmp: gcc
configuration: default
- name: "7.0 MacOS clang"
base: "7.0"
rtems: "5"
rtems_target: RTEMS-pc686-qemu
name: "Ub-20 gcc-9 + RT-5.1 pc686"
- os: ubuntu-20.04
cmp: gcc
os: macos-latest
cmp: clang
configuration: default
base: "7.0"
rtems: "5"
rtems_target: RTEMS-beatnik
test: NO
name: "Ub-20 gcc-9 + RT-5.1 beatnik"
- os: ubuntu-20.04
cmp: gcc
configuration: default
base: "7.0"
rtems: "5"
rtems_target: RTEMS-xilinx_zynq_a9_qemu
test: NO
name: "Ub-20 gcc-9 + RT-5.1 xilinx_zynq_a9_qemu"
# Cross builds
- os: ubuntu-20.04
cmp: gcc
configuration: default
base: "7.0"
rtems: "5"
rtems_target: RTEMS-uC5282
test: NO
name: "Ub-20 gcc-9 + RT-5.1 uC5282"
- os: ubuntu-20.04
cmp: gcc
configuration: default
base: "7.0"
rtems: "4.10"
name: "Ub-20 gcc-9 + RT-4.10"
rtems_target: RTEMS-pc386-qemu
test: NO
- os: ubuntu-20.04
cmp: gcc
configuration: default
base: "7.0"
rtems: "4.9"
name: "Ub-20 gcc-9 + RT-4.9"
rtems_target: RTEMS-pc386-qemu
- os: ubuntu-20.04
cmp: gcc
configuration: default
- name: "3.15 Ub-22 gcc + MinGW"
base: "3.15"
name: "Ub-20 3.15"
- os: macos-latest
cmp: clang
configuration: default
base: "7.0"
name: "MacOS clang-12"
- os: windows-2019
cmp: vs2019
configuration: default
base: "7.0"
name: "Win2019 MSC-19"
- os: windows-2019
cmp: vs2019
configuration: static
base: "7.0"
name: "Win2019 MSC-19, static"
- os: windows-2019
cmp: vs2019
configuration: debug
base: "7.0"
name: "Win2019 MSC-19, debug"
- os: windows-2019
os: ubuntu-22.04
cmp: gcc
configuration: default
cross: "windows-x64-mingw"
- name: "7.0 Ub gcc + linux-aarch64"
base: "7.0"
name: "Win2019 mingw"
os: ubuntu-latest
cmp: gcc
configuration: default
cross: "linux-aarch64"
- name: "7.0 Ub gcc + linux-arm gnueabi"
base: "7.0"
os: ubuntu-latest
cmp: gcc
configuration: default
cross: "linux-arm@arm-linux-gnueabi"
- name: "7.0 Ub gcc + linux-arm gnueabihf"
base: "7.0"
os: ubuntu-latest
cmp: gcc
configuration: default
cross: "linux-arm@arm-linux-gnueabihf"
- name: "7.0 Ub gcc + MinGW"
base: "7.0"
os: ubuntu-latest
cmp: gcc
configuration: default
cross: "windows-x64-mingw"
- name: "7.0 Ub gcc + MinGW, static"
base: "7.0"
os: ubuntu-latest
cmp: gcc
configuration: static
cross: "windows-x64-mingw"
- name: "7.0 Ub-22 gcc + RT-4.9 pc386"
base: "7.0"
os: ubuntu-22.04
cmp: gcc
configuration: default
cross: "RTEMS-pc386-qemu@4.9"
- name: "7.0 Ub-22 gcc + RT-4.10 pc386"
base: "7.0"
os: ubuntu-22.04
cmp: gcc
configuration: default
cross: "RTEMS-pc386-qemu@4.10"
test: NO
- name: "7.0 Ub-22 gcc + RT-5.1 pc686"
base: "7.0"
os: ubuntu-22.04
cmp: gcc
configuration: default
cross: "RTEMS-pc686-qemu@5"
- name: "7.0 Ub-22 gcc + RT-5.1 beatnik,zynq_a9,uC5282"
base: "7.0"
os: ubuntu-22.04
cmp: gcc
configuration: default
cross: "RTEMS-beatnik@5:RTEMS-xilinx_zynq_a9_qemu@5:RTEMS-uC5282@5"
test: NO
# Windows builds
- name: "7.0 Win-22 MSC-22"
base: "7.0"
os: windows-2022
cmp: vs2022
configuration: default
- name: "7.0 Win-22 MSC-22 static"
base: "7.0"
os: windows-2022
cmp: vs2022
configuration: static
- name: "7.0 Win-22 MSC-22 debug"
base: "7.0"
os: windows-2022
cmp: vs2022
configuration: debug
extra: "CMD_CXXFLAGS=-analyze"
- name: "7.0 Win-22 MinGW"
base: "7.0"
os: windows-2022
cmp: gcc
configuration: default
steps:
- uses: actions/checkout@v3
- uses: actions/checkout@v4
with:
submodules: true
- name: Automatic core dumper analysis
@@ -193,7 +215,7 @@ jobs:
run: python .ci/cue.py -T 60M test
- name: Upload tapfiles Artifact
if: ${{ always() }}
uses: actions/upload-artifact@v3
uses: actions/upload-artifact@v4
with:
name: tapfiles ${{ matrix.name }}
path: '**/O.*/*.tap'
@@ -209,9 +231,9 @@ jobs:
image: ${{ matrix.image }}
# Set environment variables from matrix parameters
env:
BASE: ${{ matrix.base }}
CMP: ${{ matrix.cmp }}
BCFG: ${{ matrix.configuration }}
BASE: ${{ matrix.base }}
EXTRA: ${{ matrix.extra }}
TEST: ${{ matrix.test }}
strategy:
@@ -219,81 +241,61 @@ jobs:
matrix:
# Job names also name artifacts, character limitations apply
include:
- name: "CentOS-7 3.16"
image: centos:7
cmp: gcc
configuration: default
base: "3.16"
- name: "CentOS-7 3.15"
image: centos:7
cmp: gcc
configuration: default
base: "3.15"
- name: "CentOS-7"
image: centos:7
cmp: gcc
configuration: default
- name: "7.0 CentOS-8 gcc"
base: "7.0"
image: centos:8
cmp: gcc
configuration: default
- name: "Fedora-33"
- name: "7.0 Rocky-9 gcc"
base: "7.0"
image: rockylinux:9
cmp: gcc
configuration: default
- name: "7.0 Fedora-33 gcc"
base: "7.0"
image: fedora:33
cmp: gcc
configuration: default
base: "7.0"
- name: "Fedora-latest"
- name: "7.0 Fedora gcc"
base: "7.0"
image: fedora:latest
cmp: gcc
configuration: default
base: "7.0"
steps:
- name: "Build newer Git"
# actions/checkout@v2 wants git >=2.18
# centos:7 has 1.8
if: matrix.image=='centos:7'
- name: "Fix repo URLs on CentOS-8"
# centos:8 is frozen, repos are in the vault
if: matrix.image=='centos:8'
run: |
yum -y install curl make gcc curl-devel expat-devel gettext-devel openssl-devel zlib-devel perl-ExtUtils-MakeMaker
curl https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.29.0.tar.gz | tar -xz
cd git-*
make -j2 prefix=/usr/local all
make prefix=/usr/local install
cd ..
rm -rf git-*
type -a git
git --version
sed -i -e "s|mirrorlist=|#mirrorlist=|" \
-e "s|#baseurl=http://mirror|baseurl=http://vault|" \
/etc/yum.repos.d/CentOS-Linux-{BaseOS,AppStream,Extras,Plus}.repo
- name: "Redhat setup"
run: |
dnfyum() {
dnf -y "$@" || yum -y "$@"
return $?
}
dnfyum install python3 gdb make perl gcc-c++ glibc-devel readline-devel ncurses-devel perl-devel perl-Test-Simple
git --version || dnfyum install git
# rather than just bite the bullet and link python3 -> python,
# people would rather just break all existing scripts...
[ -e /usr/bin/python ] || ln -sf python3 /usr/bin/python
python --version
- uses: actions/checkout@v3
dnf -y install python3 gdb make perl gcc-c++ glibc-devel readline-devel ncurses-devel perl-devel perl-Test-Simple
git --version || dnf -y install git
python3 --version
- uses: actions/checkout@v4
with:
submodules: true
- name: Automatic core dumper analysis
uses: mdavidsaver/ci-core-dumper@master
- name: Prepare and compile dependencies
run: python .ci/cue.py prepare
run: python3 .ci/cue.py prepare
- name: Build main module
run: python .ci/cue.py build
run: python3 .ci/cue.py build
- name: Run main module tests
run: python .ci/cue.py -T 20M test
run: python3 .ci/cue.py -T 20M test
- name: Upload tapfiles Artifact
if: ${{ always() }}
uses: actions/upload-artifact@v3
uses: actions/upload-artifact@v4
with:
name: tapfiles ${{ matrix.name }}
path: '**/O.*/*.tap'
if-no-files-found: ignore
- name: Collect and show test results
if: ${{ always() }}
run: python .ci/cue.py -T 5M test-results
run: python3 .ci/cue.py -T 5M test-results

View File

@@ -38,7 +38,7 @@ PROJECT_NAME = "PVData C++"
# could be handy for archiving the generated documentation or if some version
# control system is used.
PROJECT_NUMBER = 8.0.6
PROJECT_NUMBER = 8.0.7
# Using the PROJECT_BRIEF tag one can provide an optional one line description
# for a project that appears at the top of each page and should give viewer a

View File

@@ -2,7 +2,7 @@
EPICS_PVD_MAJOR_VERSION = 8
EPICS_PVD_MINOR_VERSION = 0
EPICS_PVD_MAINTENANCE_VERSION = 6
EPICS_PVD_MAINTENANCE_VERSION = 7
# Development flag, set to zero for release versions

View File

@@ -38,7 +38,7 @@ PROJECT_NAME = "PVData C++"
# could be handy for archiving the generated documentation or if some version
# control system is used.
PROJECT_NUMBER = 8.0.6
PROJECT_NUMBER = 8.0.7
# Using the PROJECT_BRIEF tag one can provide an optional one line description
# for a project that appears at the top of each page and should give viewer a

View File

@@ -2,6 +2,14 @@
@page release_notes Release Notes
Release 8.0.7 (Dec 2025)
========================
- Compatible changes
- Allow epics::pvData::Timer to be cancelled during callback execution.
- Clang compiler warnings cleaned up.
- Limit periodic timers to one catch-up after missing many events.
Release 8.0.6 (Dec 2023)
========================

View File

@@ -15,6 +15,7 @@
#include <sstream>
#include <epicsString.h>
#include <epicsStdio.h>
#include <epicsMutex.h>
#include <epicsThread.h>
@@ -378,7 +379,8 @@ BoundedScalarArray::BoundedScalarArray(ScalarType elementType, size_t size)
string BoundedScalarArray::getID() const
{
char buffer[32];
sprintf(buffer, "%s<%zu>", ScalarTypeFunc::name(getElementType()), size);
epicsSnprintf(buffer, sizeof(buffer), "%s<%lu>",
ScalarTypeFunc::name(getElementType()), (unsigned long) size);
return string(buffer);
}
@@ -403,7 +405,8 @@ FixedScalarArray::FixedScalarArray(ScalarType elementType, size_t size)
string FixedScalarArray::getID() const
{
char buffer[32];
sprintf(buffer, "%s[%zu]", ScalarTypeFunc::name(getElementType()), size);
epicsSnprintf(buffer, sizeof(buffer), "%s[%lu]",
ScalarTypeFunc::name(getElementType()), (unsigned long) size);
return string(buffer);
}

View File

@@ -60,6 +60,8 @@ private:
epicsTime timeToRun;
double period;
bool onList;
bool cancelled;
bool processing;
friend class Timer;
struct IncreasingTime;
};

View File

@@ -23,7 +23,9 @@ namespace epics { namespace pvData {
TimerCallback::TimerCallback()
: period(0.0),
onList(false)
onList(false),
cancelled(false),
processing(false)
{
}
@@ -50,6 +52,7 @@ void Timer::addElement(TimerCallbackPtr const & timerCallback)
temp.push_back(timerCallback);
timerCallback->onList = true;
timerCallback->cancelled = false;
// merge sorted lists.
// for us effectively insertion sort.
@@ -60,6 +63,11 @@ void Timer::addElement(TimerCallbackPtr const & timerCallback)
bool Timer::cancel(TimerCallbackPtr const &timerCallback)
{
Lock xx(mutex);
/* If we're processing, just set the cancel flag */
if (timerCallback->processing) {
timerCallback->cancelled = true;
return true;
}
if(!timerCallback->onList) return false;
if(!alive) {
timerCallback->onList = false;
@@ -107,6 +115,7 @@ void Timer::run()
TimerCallbackPtr work;
work.swap(queue.front());
work->onList = false;
work->processing = true;
queue.pop_front();
{
@@ -115,7 +124,15 @@ void Timer::run()
work->callback();
}
if(work->period > 0.0 && alive) {
work->processing = false;
if(work->period > 0.0 && alive && !work->cancelled) {
if(waitfor <= -work->period) {
// Periodic timer phase has fallen behind by at least one full period.
// Could be due to previous slow jobs, or a system time jump forward.
// Reset the phase.
work->timeToRun = now = epicsTime::getCurrent();
}
work->timeToRun += work->period;
addElement(work);
}

View File

@@ -14,6 +14,11 @@
#include <cstring>
#include <memory>
// allow to test deprecated functions without causing compiler warnings
#include <compilerDependencies.h>
#undef EPICS_DEPRECATED
#define EPICS_DEPRECATED
#include <testMain.h>
#include <pv/pvUnitTest.h>

View File

@@ -6,6 +6,7 @@
#include <testMain.h>
#include <epicsUnitTest.h>
#include <epicsStdio.h>
#include <pv/current_function.h>
#include <pv/pvData.h>
@@ -54,7 +55,7 @@ void buildMiss()
for(size_t i=0; i<1000; i++) {
// unique name each time to (partially) defeat caching
char buf[10];
sprintf(buf, "field%zu", i);
epicsSnprintf(buf, sizeof(buf), "field%lu", (unsigned long) i);
record.start();