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Support new gnmi config interface in telemetry container.
Signed-off-by: Gang Lv ganglv@microsoft.com
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
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| package common_utils | ||
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| const GNMI_WORK_PATH = "/etc/sonic/gnmi" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| package common_utils | ||
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| import ( | ||
| "fmt" | ||
| "syscall" | ||
| "unsafe" | ||
| ) | ||
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| // Use share memory to dump GNMI internal counters, | ||
| // GNMI server and gnmi_dump should use memKey to access the share memory, | ||
| // memSize is 1024 bytes, so we can support 128 counters | ||
| // memMode is 0x380, this value is O_RDWR|IPC_CREAT, | ||
| // O_RDWR means: Owner can write and read the file, everyone else can't. | ||
| // IPC_CREAT means: Create a shared memory segment if a shared memory identifier does not exist for memKey. | ||
| var ( | ||
| memKey = 7749 | ||
| memSize = 1024 | ||
| memMode = 0x380 | ||
| ) | ||
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| func SetMemCounters(counters *[len(CountersName)]uint64) error { | ||
| shmid, _, err := syscall.Syscall(syscall.SYS_SHMGET, uintptr(memKey), uintptr(memSize), uintptr(memMode)) | ||
| if int(shmid) == -1 { | ||
| return fmt.Errorf("syscall error, err: %v\n", err) | ||
| } | ||
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| shmaddr, _, err := syscall.Syscall(syscall.SYS_SHMAT, shmid, 0, 0) | ||
| if int(shmaddr) == -1 { | ||
| return fmt.Errorf("syscall error, err: %v\n", err) | ||
| } | ||
| defer syscall.Syscall(syscall.SYS_SHMDT, shmaddr, 0, 0) | ||
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| const size = unsafe.Sizeof(uint64(0)) | ||
| addr := uintptr(unsafe.Pointer(shmaddr)) | ||
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| for i := 0; i < len(counters); i++ { | ||
| *(*uint64)(unsafe.Pointer(addr)) = counters[i] | ||
| addr += size | ||
| } | ||
| return nil | ||
| } | ||
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| func GetMemCounters(counters *[len(CountersName)]uint64) error { | ||
| shmid, _, err := syscall.Syscall(syscall.SYS_SHMGET, uintptr(memKey), uintptr(memSize), uintptr(memMode)) | ||
| if int(shmid) == -1 { | ||
| return fmt.Errorf("syscall error, err: %v\n", err) | ||
| } | ||
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| shmaddr, _, err := syscall.Syscall(syscall.SYS_SHMAT, shmid, 0, 0) | ||
| if int(shmaddr) == -1 { | ||
| return fmt.Errorf("syscall error, err: %v\n", err) | ||
| } | ||
| defer syscall.Syscall(syscall.SYS_SHMDT, shmaddr, 0, 0) | ||
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| const size = unsafe.Sizeof(uint64(0)) | ||
| addr := uintptr(unsafe.Pointer(shmaddr)) | ||
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| for i := 0; i < len(counters); i++ { | ||
| counters[i] = *(*uint64)(unsafe.Pointer(addr)) | ||
| addr += size | ||
| } | ||
| return nil | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| package main | ||
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| import ( | ||
| "flag" | ||
| "fmt" | ||
| "github.com/sonic-net/sonic-gnmi/common_utils" | ||
| ) | ||
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| const help = ` | ||
| gnmi_dump is used to dump internal counters for debugging purpose, | ||
| including GNMI request counter, GNOI request counter and DBUS request counter. | ||
| ` | ||
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| func main() { | ||
| flag.Usage = func() { | ||
| fmt.Print(help) | ||
| } | ||
| flag.Parse() | ||
| var counters [len(common_utils.CountersName)]uint64 | ||
| err := common_utils.GetMemCounters(&counters) | ||
| if err != nil { | ||
| fmt.Printf("Error: Fail to read counters, %v", err) | ||
| return | ||
| } | ||
| fmt.Printf("Dump GNMI counters\n") | ||
| for i := 0; i < len(common_utils.CountersName); i++ { | ||
| fmt.Printf("%v---%v\n", common_utils.CountersName[i], counters[i]) | ||
| } | ||
| } |
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